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Submission #638763

# Submission time Handle Problem Language Result Execution time Memory
638763 2022-09-07T11:01:13 Z HossamHero7 Ice Hockey World Championship (CEOI15_bobek) C++14
70 / 100
 1000 ms 74288 KB 
#include <bits/stdc++.h>

using namespace std;
typedef long long ll;
#define endl '\n'
void solve(){
    ll n,m;
    cin>>n>>m;
    vector<ll> v(n);
    for(auto &i:v) cin>>i;
    map<ll,ll> frq;
    for(int mask=0;mask<(1<<n/2);mask++){
        ll sum = 0;
        for(int i=0;i<n/2;i++){
            if((1<<i)&mask){
                sum += v[i];
            }
        }
        frq[sum] ++;
    }
    ll prev = 0;
    vector<ll> tmp;
    for(auto &i : frq){
        i.second += prev;
        tmp.push_back(i.first);
        prev = i.second;
    }
    int rem = n-n/2;
    ll ans = 0;
    for(int mask=0;mask<(1<<rem);mask++){
        ll sum = 0;
        for(int i=0;i<rem;i++){
            if((1<<i)&mask){
                sum += v[n/2+i];
            }
        }
        if(sum > m) continue;
        int upper = upper_bound(tmp.begin(),tmp.end(),m-sum) - tmp.begin();
        upper --;
        ans += frq[tmp[upper]];
    }
    cout<<ans<<endl;
}
int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);      cout.tie(0);
    int t=1;
    // cin>>t;
    while(t--){
        solve();
    }
    return 0;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 224 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 220 KB Output is correct
5 Correct 1 ms 216 KB Output is correct
6 Correct 0 ms 216 KB Output is correct
7 Correct 0 ms 212 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 0 ms 320 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 0 ms 340 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 344 KB Output is correct

Subtask #5
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 51 ms 1172 KB Output is correct
2 Correct 325 ms 13020 KB Output is correct
3 Execution timed out 1093 ms 33200 KB Time limit exceeded
4 Halted 0 ms 0 KB -

Subtask #6
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 62 ms 1868 KB Output is correct
2 Correct 70 ms 4108 KB Output is correct
3 Correct 194 ms 1040 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 5 ms 212 KB Output is correct
6 Correct 21 ms 2348 KB Output is correct
7 Correct 26 ms 4928 KB Output is correct

Subtask #7
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 182 ms 8092 KB Output is correct
2 Correct 415 ms 9160 KB Output is correct
3 Correct 313 ms 9256 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 62 ms 300 KB Output is correct
6 Correct 259 ms 1744 KB Output is correct
7 Correct 188 ms 18856 KB Output is correct

Subtask #8
0 / 10.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1097 ms 37340 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #9
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 88 ms 4968 KB Output is correct
2 Correct 398 ms 18900 KB Output is correct
3 Correct 17 ms 2748 KB Output is correct
4 Correct 19 ms 2712 KB Output is correct
5 Correct 75 ms 212 KB Output is correct
6 Correct 34 ms 5044 KB Output is correct
7 Correct 991 ms 74288 KB Output is correct

Subtask #10
0 / 10.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1098 ms 74236 KB Time limit exceeded
2 Halted 0 ms 0 KB -