Compilare: user.cpp: In function ‘int main()’: user.cpp:15:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1;i<=n;++i) ^ user.cpp:16:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=1;j<=n;++j) ^ user.cpp:18:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1;i<=n;++i) ^ user.cpp:19:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=1;j<=n;++j) ^ user.cpp:20:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] { if(j<n) b[i][j]+=b[i-1][j+1]; // diagonala secundara ^ user.cpp:32:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=m;i<=n;++i) ^ user.cpp:33:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=m;j<=n;++j) ^ user.cpp:52:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=m;i<=n;++i) ^ user.cpp:53:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=m;j<=n;++j) ^