Compilare: main.cpp: In function 'bool verif(int, int)': main.cpp:12:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j = poz2 + 1; j < strlen(s); ++ j) t[k ++] = s[j]; ~~^~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:26:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < strlen(s); ++ i) ~~^~~~~~~~~~~ main.cpp:27:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = i; j < strlen(s); ++ j) ~~^~~~~~~~~~~