题意:给出n种面值的硬币, 和这些硬币每一种的数量, 要求求出能组成的钱数(小于等于m) 思路:一开始直接用多重背包套上去超时了,然后就没辙了,然后参考网上的,说只需要判断是否能取到就行了,并不需要记录其价格,直接用bool判断是否能取到.就不会TLE了. 代码: #include<iostream> #include<cstdio> #include<cstring> using namespace std; int n,m; int v,sum; int a[200…
题意:多重背包模型 n种物品 每个m个 问背包容量下最多拿多少 这里要用二进制优化不然会超时 #include<iostream> #include<cstdio> #include<cstring> using namespace std; +; int dp[maxn]; ],c[]; int main(){ int n,m,maxnum; while(cin>>maxnum>>n){ int a,b; ; ;i<=n;i++){…
Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 35387 Accepted: 12816 Description A Bank plans to install a machine for cash withdrawal. The machine is able to deliver appropriate @ bills for a requested cash amount. The machine uses e…
http://poj.org/problem? id=1742 Description People in Silverland use coins.They have coins of value A1,A2,A3...An Silverland dollar.One day Tony opened his money-box and found there were some coins.He decided to buy a very nice watch in a nearby shop…
Description People in Silverland use coins.They have coins of value A1,A2,A3...An Silverland dollar.One day Tony opened his money-box and found there were some coins.He decided to buy a very nice watch in a nearby shop. He wanted to pay the exact pri…
一.Description People in Silverland use coins.They have coins of value A1,A2,A3...An Silverland dollar.One day Tony opened his money-box and found there were some coins.He decided to buy a very nice watch in a nearby shop. He wanted to pay the exact p…
http://poj.org/problem?id=3260 Description Farmer John has gone to town to buy some farm supplies. Being a very efficient man, he always pays for his goods in such a way that the smallest number of coins changes hands, i.e., the number of coins he…
http://poj.org/problem?id=1787 描述 Charlie is a driver of Advanced Cargo Movement, Ltd. Charlie drives a lot and so he often buys coffee at coffee vending machines at motorests. Charlie hates change. That is basically the setup of your next task. Yo…
Coins Time Limit: 3000MS Memory Limit: 30000K Total Submissions: 33269 Accepted: 11295 Description People in Silverland use coins.They have coins of value A1,A2,A3...An Silverland dollar.One day Tony opened his money-box and found there were some…
Problem Description Whuacmers use coins.They have coins of value A1,A2,A3...An Silverland dollar. One day Hibix opened purse and found there were some coins. He decided to buy a very nice watch in a nearby shop. He wanted to pay the exact price(witho…