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Submission #807158

# Submission time Handle Problem Language Result Execution time Memory
807158 2023-08-04T14:16:09 Z sirigith Knapsack (NOI18_knapsack) C++17
12 / 100
 1 ms 212 KB 
#include <bits/stdc++.h>
using namespace std;


int main(){
    int s,n; cin>>s>>n;
    vector<vector<int>> items(n);
    for (int i=0;i<n;i++){
        int x,y,z; cin>>x>>y>>z;
        items[i]={x,y,z};
    }
    vector<int> dp(s+1,-1);
    dp[0]=0;
    for (auto j: items){
        vector<int> cnt(s+1,j[2]); //num remaining of this particular item, take max
        for (int i=0; i<s; i++){
            if (dp[i]!=-1 and cnt[i]>0 and (i+j[1]<=s)){
                if ((dp[i+j[1]]==-1) or (dp[i+j[1]]<(dp[i]+j[0]))){
                    dp[i+j[1]]=dp[i]+j[0];
                    cnt[i+j[1]]=cnt[i]-1;
                } else if (dp[i+j[1]]==dp[i]+j[0]){
                    cnt[i+j[1]]=max(cnt[i+j[1]],cnt[i]-1);
                }
            }
        }
    }
    int ans=0;
    for (auto i: dp){
        ans=max(ans,i);
    }
    cout<<ans<<'\n';
}

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct

Subtask #2
0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Incorrect 1 ms 212 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #3
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Incorrect 1 ms 212 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #4
0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Incorrect 1 ms 212 KB Output isn't correct
7 Halted 0 ms 0 KB -

Subtask #5
0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Incorrect 1 ms 212 KB Output isn't correct
7 Halted 0 ms 0 KB -