Compilare: main.cpp: In function 'int checkInclusion(long long unsigned int, long long unsigned int)': main.cpp:39:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; primes[i] <= int(sqrt((double) min(small, big))) + 1; ++i) main.cpp: In function 'void solve()': main.cpp:52:22: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%llu", &x); ^ main.cpp:53:22: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%llu", &y); ^ main.cpp: In function 'int main()': main.cpp:65:36: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("eqset.in", "r", stdin); ^ main.cpp:66:38: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("eqset.out", "w", stdout); ^ main.cpp:69:20: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &t); ^