func_code_string: #include <bits/stdc++.h>   using namespace std;   long long int power(long long int x, long long int y) {     if (y == 0)       return 1;     else if (y % 2 == 0)       return power(x, y / 2) * power(x, y / 2);     else       return x * power(x, y / 2) * power(x, y / 2);   }   double slope(long long int x1, long long int y1, long long int x2,                long long int y2) {     return (double)((double)(y2 - y1) / (x2 - x1));   }   int main() {     ios_base::sync_with_stdio(false);     cin.tie(NULL);     long long int ax, ay, bx, by, cx, cy;     cin >> ax >> ay >> bx >> by >> cx >> cy;     long long int dab = power((bx - ax), 2) + power((by - ay), 2);     long long int dbc = power((cx - bx), 2) + power((cy - by), 2);     if (dab != dbc) {       cout <<  No n ;     } else if (slope(ax, ay, bx, by) == slope(bx, by, cx, cy)) {       cout <<  No n ;     } else {       cout <<  Yes n ;     }     return 0;   }   