Submission #1121588

#	Time	Username	Problem	Language	Result	Execution time	Memory
1121588		vjudge1	Ice Hockey World Championship (CEOI15_bobek)	C++17	40 / 100	347 ms	8744 KiB

bobek

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;

signed main(){
    int n,m;
    cin >> n >> m;
    int aa;
    if(n == 1){
        cin >> aa;
        cout << (aa > m ? 0 : 1);
        return 0;
    }
    int hmm = 0;
    vector<int> a(n/2),b(n - a.size());
    for(auto &i : a){
        cin >> i;
        hmm += i;
    }
    for(auto &i : b){
        cin >> i;
        hmm += i;
    }
    vector<ll> cvbss;
    for(int mask=0;mask<(1 << a.size());++mask){
        ll curr=0;
        for(int i=0;i<a.size();++i){
            if(mask & (1 << i))curr += 1LL * a[i];
        }
        if(curr > m)continue;
        else cvbss.push_back(curr);
    }
    sort(cvbss.begin(),cvbss.end());
    ll cvb=0LL;
    for(int mask=0;mask < (1 << b.size());++mask){
        ll curr = 0;
        for(int i=0;i<b.size();++i){
            if(mask & (1 << i))curr += 1LL * b[i];
        }
        if(curr > m)continue;
        else cvb = cvb + (upper_bound(cvbss.begin(),cvbss.end(),m - curr) - cvbss.begin());
    }
    cout << cvb;
}

Compilation message (stderr)

bobek.cpp: In function 'int main()':
bobek.cpp:27:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   27 |         for(int i=0;i<a.size();++i){
      |                     ~^~~~~~~~~
bobek.cpp:37:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   37 |         for(int i=0;i<b.size();++i){
      |                     ~^~~~~~~~~

• Subtask 1: 0 / 10
• Subtask 2: 10 / 10
• Subtask 3: 0 / 10
• Subtask 4: 0 / 10
• Subtask 5: 10 / 10
• Subtask 6: 10 / 10
• Subtask 7: 10 / 10
• Subtask 8: 0 / 10
• Subtask 9: 0 / 10
• Subtask 10: 0 / 10