Compilare: main.cpp: In function 'int main()': main.cpp:14:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; (1<<i) <= p; ++i) { //luam toti bitii lui p la rand ~~~~~~~^~~~ main.cpp:9:36: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("lgput.in", "r", stdin); ^ main.cpp:10:38: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("lgput.out", "w", stdout); ^ main.cpp:12:24: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d", &n, &p); ^