51nod Greedy topic solution (supplement)

1091 Overlapping of line segments (greedy)
1099 Task execution order (greedy, thinking)
1117 Smart carpenter (priority queue, greedy)
1125 Minimum cost of exchange (greedy, ring)
1133 Non-overlapping line segments (greedy)
1163 Highest reward ( Greedy, priority queue)
1191 Eliminate rabbits (greedy, priority queue)
1212 Undirected graph minimum spanning tree (prim)
1255 Subsequence with smallest lexicographic order (greedy)
1257 Knapsack problem V3 (greedy, bisection, score planning)
1279 Throw the plate ( Simulation)
1380 Jacket master’s every three draws (greedy, thinking)
1428 Activity scheduling problem (greedy, task scheduling)
1432 Canoe (greedy)
1449 Weight weighing (thinking, hexadecimal)
1625 Jacket master gives red envelopes (dfs, Greedy)
1672 Interval Intersection (Interval Greedy)