Submission #585107

#TimeUsernameProblemLanguageResultExecution timeMemory
585107krit3379Triangles (CEOI18_tri)C++17
Compilation error
0 ms0 KiB
#include<bits/stdc++.h>
#include"trilib.h"
using namespace std;
#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")
#define N 55

int d[N][N][N],c[2];

int main(){
    int n,i,j,k,ans;
    n=nget_n();
    assert(n<=50);
    for(i=1;i<=n;i++)for(j=i+1;j<=n;j++)for(k=1;k<=n;k++){
        if(k==i||k==j)continue;
        d[i][j][k]=is_clockwise(i,j,k);
    }
    for(i=1;i<=n;i++)for(j=i+1;j<=n;j++){
        c[0]=c[1]=0;
        for(k=1;k<=n;k++){
            if(k==i||k==j)continue;
            c[d[i][j][k]]++;
        }
        if(!c[0]||!c[1])ans++;
    }
    give_answer(ans);
    return 0;
}

Compilation message (stderr)

tri.cpp: In function 'int main()':
tri.cpp:12:7: error: 'nget_n' was not declared in this scope; did you mean 'get_n'?
   12 |     n=nget_n();
      |       ^~~~~~
      |       get_n