Compilare: user.cpp: In function ‘int main()’: user.cpp:32:27: warning: variable ‘mini’ set but not used [-Wunused-but-set-variable] int n, m, i, j, mind, mini, minj, maxd=-1; ^ user.cpp:32:33: warning: variable ‘minj’ set but not used [-Wunused-but-set-variable] int n, m, i, j, mind, mini, minj, maxd=-1; ^ user.cpp:30:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("bila.in", "r", stdin); ^ user.cpp:31:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("bila.out", "w", stdout); ^ user.cpp:33:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &n, &m); ^ user.cpp:36:34: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &v[i][j]); ^ user.cpp:32:21: warning: ‘mind’ may be used uninitialized in this function [-Wmaybe-uninitialized] int n, m, i, j, mind, mini, minj, maxd=-1; ^