Compilare: main.cpp: In function 'void cautbin_sol(long long unsigned int, long long unsigned int, long long unsigned int, long long unsigned int)': main.cpp:50:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(long long i=1;i<=e1;i++){ ~^~~~ main.cpp:53:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(long long i=1;i<=e2;i++){ ~^~~~ main.cpp: In function 'int main()': main.cpp:71:34: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("bonus.in","r",stdin); ^ main.cpp:72:36: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("bonus.out","w",stdout); ^ main.cpp:76:21: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%lld",&n); ^ main.cpp:79:25: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%llu",&a); ^