Compilare: user.cpp: In function ‘bool searchh(int)’: user.cpp:17:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(caut==frecv[i]) ^ user.cpp: In function ‘int main()’: user.cpp:28:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1; i<=n; i++) ^ user.cpp:32:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=1; j<=m; j++) ^ user.cpp:35:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=1; j<m; j++) ^ user.cpp:42:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int k=j+1; k<=m; k++) ^