题意是给一棵树,问最少删掉几条边.使得剩下的子树中有节点个数为m个的 设f[i][j]表示i号点所在的子树中选了j个点至少需要删去f[i][j]条边. code: #include<cstdio> #include<iostream> #include<cmath> #include<cstring> #include<algorithm> #define maxn 155 #define inf 1061109567 using namespa…

Rebuilding Roads Time Limit: 1000MS   Memory Limit: 30000K Total Submissions: 11495   Accepted: 5276 Description The cows have reconstructed Farmer John's farm, with its N barns (1 <= N <= 150, number 1..N) after the terrible earthquake last May. Th…

树形DP..... Rebuilding Roads Time Limit: 1000MS Memory Limit: 30000K Total Submissions: 8188 Accepted: 3659 Description The cows have reconstructed Farmer John's farm, with its N barns (1 <= N <= 150, number 1..N) after the terrible earthquake last Ma…

Rebuilding Roads   Description The cows have reconstructed Farmer John's farm, with its N barns (1 <= N <= 150, number 1..N) after the terrible earthquake last May. The cows didn't have time to rebuild any extra roads, so now there is exactly one wa…

Rebuilding RoadsTime Limit: 1000MS Memory Limit: 30000KTotal Submissions: 8589 Accepted: 3854Description The cows have reconstructed Farmer John's farm, with its N barns (1 <= N <= 150, number 1..N) after the terrible earthquake last May. The cows d…

Rebuilding Roads Time Limit: 1000MS Memory Limit: 30000K Total Submissions: 10653 Accepted: 4884 Description The cows have reconstructed Farmer John's farm, with its N barns (1 <= N <= 150, number 1..N) after the terrible earthquake last May. The co…

Rebuilding Roads Time Limit: 1000MS   Memory Limit: 30000K Total Submissions: 9105   Accepted: 4122 Description The cows have reconstructed Farmer John's farm, with its N barns (1 <= N <= 150, number 1..N) after the terrible earthquake last May. The…

版权声明:本文为博主原创文章,未经博主允许不得转载. Rebuilding Roads Time Limit: 1000MS   Memory Limit: 30000K Total Submissions: 8227   Accepted: 3672 Description The cows have reconstructed Farmer John's farm, with its N barns (1 <= N <= 150, number 1..N) after the terrib…

[POJ1947]Rebuilding Roads Time Limit: 1000MS   Memory Limit: 30000K Total Submissions: 11934   Accepted: 5519 Description The cows have reconstructed Farmer John's farm, with its N barns (1 <= N <= 150, number 1..N) after the terrible earthquake las…

Rebuilding Roads Time Limit: 1000MS   Memory Limit: 30000K Total Submissions: 9957   Accepted: 4537 Description The cows have reconstructed Farmer John's farm, with its N barns (1 <= N <= 150, number 1..N) after the terrible earthquake last May. The…