Compilare: user.cpp:38:6: warning: ISO C++ forbids declaration of ‘main’ with no type [-Wreturn-type] main() ^ user.cpp: In function ‘int main()’: user.cpp:40:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("cclj.in", "r", stdin); ^ user.cpp:41:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("cclj.out", "w", stdout); ^ user.cpp:42:21: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &te); ^ user.cpp:44:31: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d", &n, &m); ^ user.cpp: In function ‘void Mut(int, int)’: user.cpp:21:35: warning: ‘coloana’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(l+x[i]>=1&&l+x[i]<=n&&c+y[i]>=1&&c+y[i]<=m&&t[l+x[i]][c+y[i]]==0) ^ user.cpp:21:13: warning: ‘linie’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(l+x[i]>=1&&l+x[i]<=n&&c+y[i]>=1&&c+y[i]<=m&&t[l+x[i]][c+y[i]]==0) ^