Submission #1051454

#	Time	Username	Problem	Language	Result	Execution time	Memory
1051454		anton	Triangles (CEOI18_tri)	C++17	35 / 100	772 ms	1448 KiB

tri

#include<bits/stdc++.h>
#include"trilib.h"

using namespace std;
int N;


signed main(){
    N = get_n();
    vector<vector<int>> count_above(N, vector<int> (N));

    for(int i = 0; i<N; i++){
        for(int j = 0; j<N; j++){
            for(int k = 0; k<N; k++){
                if(i!=j && i!=k && j!=k){
                    if(is_clockwise(i+1, j+1, k+1)){
                        count_above[i][j] ++;
                    }
                }
            }
        }
    }

    int res= 0;
    for(int i = 0; i<N; i++){
        for(int j = 0; j<N; j++){
            if(i!=j){
                if(count_above[i][j] == N-2){
                    res++;
                }
            }
        }
    }

    cout<<res<<endl;
}

• Subtask 1: 15 / 15
• Subtask 2: 0 / 20
• Subtask 3: 0 / 20
• Subtask 4: 20 / 20
• Subtask 5: 0 / 25