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1 package main |
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2 |
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3 import ( |
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4 "fmt" |
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5 "log" |
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6 "os" |
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7 "time" |
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8 |
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9 flag "github.com/docker/docker/pkg/mflag" |
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10 |
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11 "mikael/takuzu" |
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12 ) |
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13 |
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14 var verbosity int |
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15 |
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16 func newTakuzuGameBoard(size int, simple bool, jobs int, buildBoardTimeout, reduceBoardTimeout time.Duration, minRatio, maxRatio int) *takuzu.Takuzu { |
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17 results := make(chan *takuzu.Takuzu) |
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18 |
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19 newTak := func(i int) { |
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20 takuzu, err := takuzu.NewRandomTakuzu(size, simple, fmt.Sprintf("%v", i), |
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21 buildBoardTimeout, reduceBoardTimeout, minRatio, maxRatio) |
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22 |
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23 if err == nil && takuzu != nil { |
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24 results <- takuzu |
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25 if verbosity > 0 && jobs > 1 { |
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26 log.Printf("Worker #%d done.", i) |
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27 } |
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28 } else { |
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29 results <- nil |
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30 } |
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31 } |
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32 |
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33 if jobs == 0 { |
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34 return nil |
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35 } |
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36 for i := 0; i < jobs; i++ { |
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37 go newTak(i) |
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38 } |
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39 tak := <-results |
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40 return tak |
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41 } |
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42 |
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43 func main() { |
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44 var game string |
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45 |
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46 vbl := flag.Uint([]string{"-vl"}, 0, "Verbosity Level") |
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47 simple := flag.Bool([]string{"-simple"}, false, "Only look for trivial solutions") |
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48 out := flag.Bool([]string{"-out"}, false, "Send solution string to output") |
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49 flag.StringVar(&game, []string{"-game"}, "", "Load game string") |
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50 schrodLvl := flag.Uint([]string{"-x-sl"}, 0, "[Advanced] Schrödinger level") |
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51 resolveTimeout := flag.Duration([]string{"-x-timeout"}, 0, "[Advanced] Resolution timeout") |
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52 buildBoardTimeout := flag.Duration([]string{"-x-build-timeout"}, 5*time.Minute, "[Advanced] Build timeout per resolution") |
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53 reduceBoardTimeout := flag.Duration([]string{"-x-reduce-timeout"}, 20*time.Minute, "[Advanced] Reduction timeout") |
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54 buildMinRatio := flag.Uint([]string{"-x-new-min-ratio"}, 55, "[Advanced] Build empty cell ratio (40-60)") |
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55 buildMaxRatio := flag.Uint([]string{"-x-new-max-ratio"}, 62, "[Advanced] Build empty cell ratio (50-99)") |
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56 all := flag.Bool([]string{"-all"}, false, "Look for all possible solutions") |
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57 reduce := flag.Bool([]string{"-reduce"}, false, "Try to reduce the number of digits") |
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58 buildNewSize := flag.Uint([]string{"-new"}, 0, "Build a new takuzu board (with given size)") |
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59 pdfFileName := flag.String([]string{"-to-pdf"}, "", "PDF output file name") |
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60 workers := flag.Uint([]string{"-workers"}, 1, "Number of parallel workers (use with --new)") |
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61 |
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62 flag.Parse() |
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63 |
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64 verbosity = int(*vbl) |
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65 takuzu.SetVerbosityLevel(verbosity) |
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66 takuzu.SetSchrodingerLevel(*schrodLvl) |
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67 |
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68 var tak *takuzu.Takuzu |
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69 |
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70 if game != "" { |
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71 var err error |
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72 tak, err = takuzu.NewFromString(game) |
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73 if tak == nil || err != nil { |
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74 fmt.Fprintln(os.Stderr, "Error:", err) |
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75 tak = nil |
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76 } |
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77 } |
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78 |
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79 if *buildNewSize > 0 { |
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80 if verbosity > 1 { |
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81 log.Printf("buildBoardTimeout: %v", *buildBoardTimeout) |
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82 log.Printf("reduceBoardTimeout: %v", *reduceBoardTimeout) |
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83 log.Printf("Free cell min ratio: %v", *buildMinRatio) |
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84 log.Printf("Free cell max ratio: %v", *buildMaxRatio) |
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85 } |
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86 tak = newTakuzuGameBoard(int(*buildNewSize), *simple, |
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87 int(*workers), |
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88 *buildBoardTimeout, *reduceBoardTimeout, |
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89 int(*buildMinRatio), int(*buildMaxRatio)) |
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90 } |
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91 |
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92 if tak == nil { |
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93 fmt.Fprintln(os.Stderr, "Could not create takuzu board.") |
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94 os.Exit(255) |
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95 } |
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96 |
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97 tak.DumpBoard() |
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98 fmt.Println() |
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99 |
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100 if *pdfFileName != "" { |
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101 if err := tak2pdf(tak, *pdfFileName); err != nil { |
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102 log.Println(err) |
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103 os.Exit(1) |
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104 } |
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105 if *out { |
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106 tak.DumpString() |
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107 } |
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108 os.Exit(0) |
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109 } |
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110 |
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111 if *buildNewSize > 0 { |
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112 if *out { |
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113 tak.DumpString() |
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114 } |
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115 os.Exit(0) |
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116 } |
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117 |
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118 if *reduce { |
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119 if verbosity > 1 { |
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120 log.Printf("buildBoardTimeout: %v", *buildBoardTimeout) |
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121 log.Printf("reduceBoardTimeout: %v", *reduceBoardTimeout) |
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122 } |
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123 var err error |
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124 if tak, err = tak.ReduceBoard(*simple, "0", *buildBoardTimeout, *reduceBoardTimeout); err != nil { |
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125 log.Println(err) |
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126 os.Exit(1) |
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127 } |
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128 |
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129 tak.DumpBoard() |
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130 fmt.Println() |
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131 |
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132 if *out { |
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133 tak.DumpString() |
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134 } |
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135 |
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136 os.Exit(0) |
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137 } |
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138 |
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139 if *simple { |
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140 full, err := tak.TrySolveTrivial() |
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141 if err != nil { |
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142 log.Println(err) |
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143 os.Exit(1) |
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144 } |
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145 if !full { |
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146 tak.DumpBoard() |
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147 log.Println("The takuzu could not be completed using trivial methods.") |
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148 os.Exit(2) |
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149 } |
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150 |
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151 log.Println("The takuzu is correct and complete.") |
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152 tak.DumpBoard() |
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153 fmt.Println() |
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154 |
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155 if *out { |
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156 tak.DumpString() |
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157 } |
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158 os.Exit(0) |
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159 } |
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160 |
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161 var allSol *[]takuzu.Takuzu |
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162 if *all { |
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163 allSol = &[]takuzu.Takuzu{} |
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164 } |
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165 res, err := tak.TrySolveRecurse(allSol, *resolveTimeout) |
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166 if err != nil && verbosity > 1 { |
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167 // The last trivial resolution failed |
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168 log.Println("Trivial resolution failed:", err) |
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169 } |
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170 |
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171 // Ignoring res & err if a full search was requested |
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172 if *all { |
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173 log.Println(len(*allSol), "solution(s) found.") |
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174 if len(*allSol) > 0 { |
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175 for _, s := range *allSol { |
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176 if *out { |
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177 s.DumpString() |
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178 } else { |
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179 s.DumpBoard() |
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180 fmt.Println() |
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181 } |
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182 } |
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183 if len(*allSol) > 1 { |
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184 os.Exit(3) |
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185 } |
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186 os.Exit(0) |
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187 } |
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188 fmt.Println("No solution found.") |
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189 os.Exit(2) |
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190 } |
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191 |
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192 if err != nil { |
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193 log.Println(err) |
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194 os.Exit(1) |
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195 } |
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196 if res != nil { |
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197 res.DumpBoard() |
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198 fmt.Println() |
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199 |
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200 if *out { |
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201 res.DumpString() |
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202 } |
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203 os.Exit(0) |
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204 } |
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205 |
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206 fmt.Println("No solution found.") |
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207 os.Exit(2) |
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208 } |