Compilare: main.cpp: In function 'long long unsigned int pcur(int)': main.cpp:40:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1; i<nrcif-nrc; i++) ~^~~~~~~~~~ main.cpp: In function 'void ansmake(int, int, int)': main.cpp:51:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(p-(nrcif-cfol)*2-efol>=usage[i]-2 && ans+i*pcur(cfol)<n) ~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:73:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(query<=p) ~~~~~^~~ main.cpp:78:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<=p; i+=2) ~^~~ main.cpp:83:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<p-3; i+=2) ~^~~~