Submission #424881

#	Time	Username	Problem	Language	Result	Execution time	Memory
424881		Runtime_error_	Triangles (CEOI18_tri)	C++14	35 / 100	405 ms	332 KiB

tri

#include "trilib.h"
#include <bits/stdc++.h>
using namespace std;
int n;
set<int> s;
int main(){
    s.clear();
    n = get_n();
    for(int i=1;i<=n;i++){
        for(int j=i+1;j<=n;j++){
            int res =0;
            for(int z=1;z<=n;z++){
                if(z == i  || z == j)continue;
                res |= (1<<is_clockwise(i,j,z));
            }
            if(res == 1 || res == 2)
                s.insert(i),s.insert(j);
        }
    }
    give_answer(s.size());
}

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