Compilare: main.cpp: In function 'int Ans(int, int, int)': main.cpp:33:32: warning: unused variable 'f' [-Wunused-variable] int m = (n * (n - 1)) / 2, f = 1, ans = 0; ^ main.cpp:33:39: warning: unused variable 'ans' [-Wunused-variable] int m = (n * (n - 1)) / 2, f = 1, ans = 0; ^~~ main.cpp:67:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ main.cpp: In function 'int main()': main.cpp:71:20: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &t); ^ main.cpp:114:30: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &n, &k); ^ main.cpp:118:31: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &p[i]); ^