Compilare: user.cpp: In function ‘int interesant(int, int)’: user.cpp:15:43: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( int i = 0 ; m < strlen( sir[ a ] ) && i < strlen( sir[ b ] ) ; i ++ ){ ^ user.cpp:15:69: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( int i = 0 ; m < strlen( sir[ a ] ) && i < strlen( sir[ b ] ) ; i ++ ){ ^ user.cpp:19:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if( m == strlen( sir[ a ] ) ) ^ user.cpp: In function ‘int main()’: user.cpp:47:42: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if( maxi == strlen( sir[ i ] ) ){ ^