Compilare: main.cpp: In function 'int main()': main.cpp:21:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(i < strlen(b) && j < n) ~~^~~~~~~~~~~ main.cpp:31:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(aux == 0 && i == strlen(b)) ok = true; ~~^~~~~~~~~~~~ main.cpp:8:38: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("balbaiala.in","r",stdin); ^ main.cpp:9:40: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("balbaiala.out","w",stdout); ^