Compilare: user.cpp: In function ‘int main()’: user.cpp:14:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1;i<=m;i++) ^ user.cpp:15:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=1;j<=n;j++) ^ user.cpp:18:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=2;i<=n;i++) ^ user.cpp:20:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=2;i<m;i++) ^ user.cpp:34:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=3;j<=n;j++) ^ user.cpp:36:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(b[i][j]<min1) ^ user.cpp:43:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(b[i][j]<min2) ^ user.cpp:46:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=1;j<=n;j++) ^ user.cpp:53:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j=2; j<=n; j++) ^ user.cpp:54:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(b[m][j]<min1) ^