Compilare: user.c:3:40: warning: built-in function ‘pow’ declared as non-function [enabled by default] long long T, i, p, n, k, m, a, b, ans, pow, loop, pow2; ^ user.c: In function ‘main’: user.c:45:23: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if(n==1 || !(n%2) && n!=2){ ^ user.c:36:8: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] freopen("dk.in", "r", stdin); ^ user.c:37:8: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] freopen("dk.out", "w", stdout); ^