蛮力法（DFS）解决TSP问题

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377.637 832.217 1111.98 1666.72 2158.71 395.032 1094.32 416.707 163.355 0 338.634 1030.34 1248.58 1447.69 522.644 789.744 541.912 952.589 2171.95 407.682 859.414 1096.73 797.779 1080.27 1462.1 1663.91 366.76 830.952 1089.12 1648.88 2216.58 410.118 1382.73 503.563 395.14 338.634 0 984.068 1160.26 1323.7 776.171 857.149 520.715 966.57 1979.39 655.08 1168.29 1406.84 1122.52 1418.32 1792.92 1986.81 705.352 1169.36 1422.58 1982.22 3174.04 637.942 1240.15 624.725 885 1030.34 984.068 0 243.417 473.768 1531.95 1798.74 1489.84 1935.41 2880.62 828.032 1207.44 1372.65 1277.62 1657.67 1841.59 1928.16 1185.54 1527.25 1824.7 2323.76 3371.13 853.554 1460.25 854.916 1110.86 1248.58 1160.26 243.417 0 232.112 1759.38 1998.91 1677.49 2124.56 2981.51 1070.02 1443.8 1599.81 1518.26 1897.75 2067.46 2141.56 1424.64 1770.58 2067.93 2564.19 3540.24 1055 1687 1068.42 1318.19 1447.69 1323.7 473.768 232.112 0 1965.11 2175.68 1844.41 2289.82 3056.56 1295.34 1675.68 1829.1 1750.26 2129.83 2295.93 2364.2 1645.02 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2743.39 2836.64 3274.06 2492.97 370.871 730.616 279.016 268.287 407.682 655.08 828.032 1070.02 1295.34 765.851 1155.64 945.673 1334 2577.79 0 540.565 773.68 537.941 900.845 1201.75 1367.59 367.01 719.712 1016.99 1547.81 2617.38 907.93 267.032 806.744 774.362 859.414 1168.29 1207.44 1443.8 1675.68 934.667 1420.45 1322.97 1617.21 2981.55 540.565 0 238.6 141.891 466.653 668.283 827.363 559.072 451.957 699.909 1128.68 2757.61 1136.27 171.266 1031.81 1012.7 1096.73 1406.84 1372.65 1599.81 1829.1 1127.35 1619.88 1546.99 1817.7 3202.04 773.68 238.6 0 322.374 437.595 469.093 596.259 782.859 554.008 720.707 1038 2478.02 908.014 398.288 815.839 737.288 797.779 1122.52 1277.62 1518.26 1750.26 809.996 1300.56 1226.34 1498.16 2879.93 537.941 141.891 322.374 0 380.489 673.704 866.17 464.346 313.933 578.582 1046.14 2386.87 1263.54 602.127 1179.55 1059.81 1080.27 1418.32 1657.67 1897.75 2129.83 904.005 1384.44 1403.61 1578.17 3006.66 900.845 466.653 437.595 380.489 0 438.416 684.966 714.079 270.337 289.394 666.557 2775.3 1572.14 612.16 1473.5 1410.85 1462.1 1792.92 1841.59 2067.46 2295.93 1340.86 1822.86 1831.53 2016.47 3444.74 1201.75 668.283 469.093 673.704 438.416 0 251.803 1106.75 703.082 664.267 692.726 3023.05 1732.29 692.362 1628.07 1596.7 1663.91 1986.81 1928.16 2141.56 2364.2 1581.47 2067.37 2061.36 2262.07 3686.52 1367.59 827.363 596.259 866.17 684.966 251.803 0 1319.88 943.203 915.481 867.108 2163.06 629.086 820 582.383 377.637 366.76 705.352 1185.54 1424.64 1645.02 426.53 880.223 764.703 1073.37 2422.56 367.01 559.072 782.859 464.346 714.079 1106.75 1319.88 0 465.58 735.833 1293.04 2203.69 1060.25 681.197 989.469 832.217 830.952 1169.36 1527.25 1770.58 2000.46 638.443 1125.32 1133.29 1321.12 2743.39 719.712 451.957 554.008 313.933 270.337 703.082 943.203 465.58 0 298.236 836.768 2116.05 1350.41 878.8 1284 1111.98 1089.12 1422.58 1824.7 2067.93 2298.13 776.336 1216.14 1301.67 1400.45 2836.64 1016.99 699.909 720.707 578.582 289.394 664.267 915.481 735.833 298.236 0 559.812 2312.69 1896.57 1208.51 1822.56 1666.72 1648.88 1982.22 2323.76 2564.19 2796.24 1304.6 1690.31 1829.73 1856.07 3274.06 1547.81 1128.68 1038 1046.14 666.557 692.726 867.108 1293.04 836.768 559.812 0