最短路
【HDU】
1548 A strange lift 基础最短路(或bfs)★1839 Delay Constrained... 二分下限+最短路(带限制最短路)★★
3631 Shortest Path Floyd插点法★★4114 Disney's FastPass 最短路+二维状压DP(难)★★★
3832 Earth Hour 三点连通(斯坦纳树)★
3873 Invade the Mars Dij变体(好题!,带限制最短路)★★★
4063 Aircraft 几何构图+最短路★★★★
hdu4179 Difficult Routes dis[][]开二维状态的最短路(带限制最短路)★★
2145 zz's Mysterious Present 反向建边. 最短路
3268 最短路3768 Shopping 最短路+dfs(或最短路+状压DP)★★
3035 War 平面图最小割(建图麻烦)★★3860 Circuit Board 平面图最小割(建图麻烦)★★
4308 Saving Princess claire_ 最短路构图
4034 Graph [Floyd应用]
4157 Slalom 计算几何+最短路
4280 Island Transport [抠图+平面图最小割]
4293 Groups [最长路]
4318 Power transmission
4360 As long as Binbin loves Sangsang
4370 0 or 1
4396 More lumber is required
=======================================================================================================1094 Sorting It All OutFloyd 判环+拓扑排序★
1125 Stockbroker Grapevine Floyd★
1135 Domino Effect 最短路,比较有意思★★
1161 Walls 最短路(图太恶心了)★★
1502 MPI Maelstrom Floyd★
1511 Invitation Cards 来回最短路★
1556 The Doors 计算几何+最短路★★
1724 ROADS 带限制的最短路,dis[][]开二维来记录信息(或广搜)★★
1734 Sightseeing trip floyd最小环路径★
1797 Heavy Transportation 二分枚举+最短路★
1847 Tram 简单最短路★1860 Currency Exchange 货币兑换★
1949 Chores 反向建边,求最长路★★
2139 Six Degrees of Cowvin Bacon Floyd★
2240 Arbitrage 货币兑换★
2253 Frogger 二分+最短路★
2312 坦克大战 spfa最短路本质变形-->广搜★
2387 Til the Cows Come Home 基础最短路★
2394 Checking an Alibi 最短路★
2449 Remmarguts' Date A*求第K短路★★
2457 Part Acquisition 最短路 (输出路径)★★
2472 106 miles to Chicago 乘积最短路(log一下,乘变加)★★
2502 Subway3114 Countries in War 强联通+最短路
3160 Father Christmas flymouse 强联通+最长路
3255 Roadblocks3259 Wormholes (寻找负权回路)
3268 Silver Cow Party3311 Hie with the Pie floyd+状压
3328 Cliff Climbing3521 Geometric Map 计算几何+最短路
3549 GSM phone 计算几何+最短路
3594 Escort of Dr. Who How3613 Cow Relays 经过N条边的最短路 // floyd + 二分矩阵
3615 Cow Hurdles4046 Sightseeing
【SGU314】一道神级求前k短路。。。
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差分约束
【HDU】
1384 Intervals 基础差分约束★
1529 Cashier Employment 神级差分约束★★★★
1531 King 差分约束★
1534 Schedule Problem 差分约束输出一组解★
3440 House Man 比较好的差分约束★★
3592 World Exhibition 简单★
3666 THE MATRIX PROBLEM 中等★★
4274 Spy's Work [先处理出欧拉序列,然后就是差分约束了...]
【POJ】
1201 Intervals
1275 Cashier Employment
1364 King
1716 Integer Intervals
2949 Word Rings
2983 Is the Information Reliable?
3159
3169
3687