func_code_string: #include <bits/stdc++.h>   using namespace std;   struct point {     int x, y, idx;     long double at;     bool operator<(const point &other) const { return at < other.at; }   };   point p[123123];   int main() {     int n;     scanf( %d n , &n);     for (auto(i) = (0); (i) < (n); (i)++) {       int a, b;       scanf( %d %d n , &a, &b);       p[i].x = a;       p[i].y = b;       p[i].idx = i;       p[i].at = atan2(b, a);     }     sort(p, p + n);     long double kek = 123123;     int good1, good2;     for (auto(i) = (1); (i) < (n); (i)++) {       if (kek - p[i].at + p[i - 1].at > 1e-21) {         kek = p[i].at - p[i - 1].at;         good1 = p[i - 1].idx;         good2 = p[i].idx;       }     }     p[0].at += 2 * 3.1415926535897932384;     if (kek - p[0].at + p[n - 1].at > 1e-21) {       good1 = p[0].idx;       good2 = p[n - 1].idx;     }     printf( %d %d n , good1 + 1, good2 + 1);     return 0;   }   