Compilare: user.cpp: In function ‘int main()’: user.cpp:43:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for ( int i=0; i<strlen(s); i++ ) ^ user.cpp:48:40: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for ( int j=i+1; j<strlen(s); j++ ) ^ user.cpp:418:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for ( int i=0; i<strlen(s); i++ ) ^ user.cpp:455:43: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for ( int i=pozSf[k]+1; i<strlen(s); i++) ^ user.cpp:470:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for ( int i=0; i<strlen(s); i++ ) ^ user.cpp:475:44: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for ( int j=i+1; j<strlen(s); j++ ) ^ user.cpp:495:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for ( int j=0; j<strlen(s); j++ ) ^