Compilare: main.cpp: In function 'void sieve()': main.cpp:20:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 4;i <= NMAX;i += 2) ~~^~~~~~~ main.cpp:27:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = i + i;j <= NMAX;j += i) ~~^~~~~~~ main.cpp: In function 'long long int cautare_binara1(long long int)': main.cpp:60:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(result >= a){ ~~~~~~~^~~~ main.cpp: In function 'long long int cautare_binara2(long long int)': main.cpp:83:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(result <= b){ ~~~~~~~^~~~ main.cpp: In function 'int main()': main.cpp:105:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0;i < prime.size() && prime[i] * prime[i] <= b;++i){ ~~^~~~~~~~~~~~~~ main.cpp:105:63: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0;i < prime.size() && prime[i] * prime[i] <= b;++i){