Compilare: user.cpp: In function ‘int main()’: user.cpp:32:29: warning: format ‘%d’ expects argument of type ‘int*’, but argument 2 has type ‘long long int*’ [-Wformat=] scanf("%d%d", &x, &y); ^ user.cpp:32:29: warning: format ‘%d’ expects argument of type ‘int*’, but argument 3 has type ‘long long int*’ [-Wformat=] user.cpp:27:24: warning: unused variable ‘j’ [-Wunused-variable] long long n, k, i, j, sum,a, x, y, c1, c2, mij; ^ user.cpp:27:31: warning: unused variable ‘a’ [-Wunused-variable] long long n, k, i, j, sum,a, x, y, c1, c2, mij; ^ user.cpp:25:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("kbetray.in", "r", stdin); ^ user.cpp:26:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("kbetray.out", "w", stdout); ^ user.cpp:28:30: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%lld%lld", &n, &k); ^ user.cpp:32:30: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &x, &y); ^ user.cpp:27:48: warning: ‘mij’ may be used uninitialized in this function [-Wmaybe-uninitialized] long long n, k, i, j, sum,a, x, y, c1, c2, mij; ^