oj.uz

Submission #893430

# Submission time Handle Problem Language Result Execution time Memory
893430 2023-12-27T04:49:12 Z vjudge1 Event Hopping 2 (JOI21_event2) C++17
0 / 100
 53 ms 1884 KB 
#include <bits/stdc++.h>
#define int long long
#define all(x) x.begin(),x.end()
#define ff first
#define ss second
#define pb push_back
using namespace std;

signed main(){
    int n,k;
    cin>>n>>k;
    vector <int> a(n),b(n);
    for(int i=0;i<n;i++)cin>>a[i]>>b[i];
    for(int i=0;i<(1<<n);i++){
        vector <pair <int,int> > v;
        for(int j=0;j<n;j++){
            if((i & (1<<j))!=0){
                v.pb({a[j],b[j]});
            }
        }
        if(v.size()==k){
            sort(all(v));
            bool flag=true;
            for(int j=0;j<k;j++){
                if(j-1>=0 && v[j].ff<v[j-1].ss)flag=false;
            }
            if(flag){
                for(int j=0;j<n;j++){
                    if((i & (1<<j))!=0){
                        cout<<j+1<<"\n";
                    }
                }
                return 0;
            }
            
        }
    }
    cout<<-1<<"\n";
}

Compilation message

event2.cpp: In function 'int main()':
event2.cpp:21:20: warning: comparison of integer expressions of different signedness: 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} and 'long long int' [-Wsign-compare]
   21 |         if(v.size()==k){
      |            ~~~~~~~~^~~

Subtask #1
0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Incorrect 53 ms 1884 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #2
0 / 1.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 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 348 KB Output is correct
6 Correct 21 ms 444 KB Output is correct
7 Correct 45 ms 412 KB Output is correct
8 Incorrect 2 ms 348 KB Output isn't correct
9 Halted 0 ms 0 KB -

Subtask #3
0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 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 348 KB Output is correct
6 Correct 21 ms 444 KB Output is correct
7 Correct 45 ms 412 KB Output is correct
8 Incorrect 2 ms 348 KB Output isn't correct
9 Halted 0 ms 0 KB -

Subtask #4
0 / 61.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Incorrect 53 ms 1884 KB Output isn't correct
5 Halted 0 ms 0 KB -