oj.uz

Submission #928910

# Submission time Handle Problem Language Result Execution time Memory
928910 2024-02-17T07:56:26 Z Warinchai Ice Hockey World Championship (CEOI15_bobek) C++14
100 / 100
 300 ms 21700 KB 
#include<bits/stdc++.h>
#define int long long
using namespace std;
int ar[45];
vector<int>first;
vector<int>second;
int32_t main(){
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    int n,m;cin>>n>>m;
    int md=n/2;
    int m2=n-md;
    for(int i=1;i<=n;i++){
        cin>>ar[i];
    }
    for(int i=0;i<(1<<md);i++){
        int sum=0;
        for(int j=0;j<md;j++){
            if((i>>j)&1)sum+=ar[j+1];
        }
        //cerr<<i<<" "<<sum<<"\n";
        if(sum<=m)first.push_back(sum);
    }
    for(int i=0;i<(1<<m2);i++){
        int sum=0;
        for(int j=0;j<m2;j++){
            if((i>>j)&1)sum+=ar[md+j+1];
        }
        if(sum<=m)second.push_back(sum);
    }
    sort(first.begin(),first.end());
    sort(second.begin(),second.end(),greater<int>());
    /*for(auto x:first)cerr<<x<<" ";
    cerr<<"\n";
    for(auto x:second)cerr<<x<<" ";
    cerr<<"\n";*/
    int cur=0;
    int ans=0;
    for(auto x:first){
        while(cur<second.size()&&x+second[cur]>m){
            cur++;
        }
        ans+=second.size()-cur;
    }

    cout<<ans;
}

Compilation message

bobek.cpp: In function 'int32_t main()':
bobek.cpp:40:18: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   40 |         while(cur<second.size()&&x+second[cur]>m){
      |               ~~~^~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 604 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 464 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct

Subtask #5
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 24 ms 2144 KB Output is correct
2 Correct 71 ms 5580 KB Output is correct
3 Correct 300 ms 20968 KB Output is correct
4 Correct 75 ms 5576 KB Output is correct
5 Correct 13 ms 1756 KB Output is correct
6 Correct 8 ms 1112 KB Output is correct
7 Correct 8 ms 344 KB Output is correct

Subtask #6
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 33 ms 2868 KB Output is correct
2 Correct 25 ms 2140 KB Output is correct
3 Correct 124 ms 11356 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 6 ms 1116 KB Output is correct
6 Correct 16 ms 1500 KB Output is correct
7 Correct 8 ms 348 KB Output is correct

Subtask #7
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 52 ms 3676 KB Output is correct
2 Correct 107 ms 7244 KB Output is correct
3 Correct 106 ms 6724 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 74 ms 7232 KB Output is correct
6 Correct 264 ms 21316 KB Output is correct
7 Correct 48 ms 348 KB Output is correct

Subtask #8
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 224 ms 13120 KB Output is correct
2 Correct 24 ms 2140 KB Output is correct
3 Correct 8 ms 992 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 6 ms 1244 KB Output is correct
6 Correct 215 ms 14148 KB Output is correct
7 Correct 8 ms 348 KB Output is correct

Subtask #9
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 24 ms 2144 KB Output is correct
2 Correct 72 ms 5548 KB Output is correct
3 Correct 8 ms 1116 KB Output is correct
4 Correct 8 ms 992 KB Output is correct
5 Correct 77 ms 7748 KB Output is correct
6 Correct 25 ms 2144 KB Output is correct
7 Correct 132 ms 348 KB Output is correct

Subtask #10
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 297 ms 21700 KB Output is correct
2 Correct 25 ms 2144 KB Output is correct
3 Correct 8 ms 992 KB Output is correct
4 Correct 295 ms 21104 KB Output is correct
5 Correct 115 ms 12428 KB Output is correct
6 Correct 16 ms 1500 KB Output is correct
7 Correct 15 ms 452 KB Output is correct