Compilare: user.cpp: In function ‘int main()’: user.cpp:36:23: warning: variable ‘mini’ set but not used [-Wunused-but-set-variable] int minim = MULT, mini, minj; ^ user.cpp:36:29: warning: variable ‘minj’ set but not used [-Wunused-but-set-variable] int minim = MULT, mini, minj; ^ user.cpp:23:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("cri.in", "r", stdin); ^ user.cpp:24:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("cri.out", "w", stdout); ^ user.cpp:26:39: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf ("%d%d%d%d", &N, &M, &X, &Y); ^ user.cpp:29:35: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf ("%d", &a[i][j]); ^