33 lines
778 B
C++
33 lines
778 B
C++
#include <bits/stdc++.h>
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using namespace std;
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const int maxm = 201, maxn = 31;
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int m, n;
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int w[maxn], c[maxn];
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int f[maxn][maxm];
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/*
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10 4
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2 1
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3 3
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4 5
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7 9
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*/
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int main(){
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ios::sync_with_stdio(false);
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cin.tie(0);
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cin>>m>>n; //背包容量m和物品数量n
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for (int i = 1; i <= n; i++) //在初始化循环变量部分，定义一个变量并初始化
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cin>>w[i]>>c[i]; //每个物品的重量和价值
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for (int i = 1; i <= n; i++) // f[i][v]表示前i件物品，总重量不超过v的最优价值
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for (int v = m; v > 0; v--)
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if (w[i] <= v)
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f[i][v] = max(f[i-1][v],f[i-1][v-w[i]]+c[i]);
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else
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f[i][v] = f[i-1][v];
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cout<<f[n][m]<<endl; // f[n][m]为最优解
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return 0;
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}
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