OJ Board

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removed, accept ^^

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edited..

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#include <stdio.h>
#include <algorithm>
using namespace std;
struct MoneyPoint{
       int m,p;
};
int const max_v = 10001;
MoneyPoint mp[max_v];
int grid[101][max_v];
int max_f(int a,int b){
       return a>b?a:b;
}
int knapsack01(int N,int L){
       int i,j,tL;
       for(i=0;i<=N;i++){
               grid[i][0]=0;
       }
       tL=L;
       if(L+200>2000)L+=200;
       for(i=1;i<=N;i++){
               for(j=1;j<=L;j++){
                       if(j==1 && j<mp[i].m)
                               grid[i][j]=0;
              //problem may be in this part [][][][][][][]
                       else if(j==1 && j<=tL || j>2000)
                               grid[i][j]=mp[i].p;
                       else if(j<mp[i].m)
                               grid[i][j]=grid[i-1][j];
                       else{
                               grid[i][j]=max_f(grid[i-1][j],(j<=tL||j>2000)?mp[i].p+grid[i-1][j-mp[i].m]:grid[i-1][j]);
//[][][][][][][]
                       }
               }
       }
       return grid[N][L];
}
bool comp(MoneyPoint a,MoneyPoint b){
       if(a.m<b.m)return true;
       if(a.m==b.m && a.p>b.p)return true;
       return false;
}
int main(){
       int n,m,i;
       while(scanf("%d%d",&m,&n)==2){
               for(i=1;i<=n;i++){
                       scanf("%d%d",&mp[i].m,&mp[i].p);
               }
               sort(mp+1,mp+n+1,comp);
               printf("%d\n",knapsack01(n,m));
       }
       return 0;
}

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1800 3
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2000 5
101 1

1801 3
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1955 1
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5000 4
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1000 2
1000 3
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