Compilare: main.cpp:1:2: warning: #import is a deprecated GCC extension [-Wdeprecated] 1 | #import<fstream> | ^~~~~~ main.cpp:18:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type] 18 | main(){f>>n>>m;for(q=0;q<n;q++){f>>j;for(i=2;p=j%i,i<21;A[i++][p][k]=j)for(k=5;k&&j>A[i][p][k-1];)A[i][p][k--]=A[i][p][k-1];}for(q=0;q<m;q++){f>>k>>p;s=-1;h(k,0,0);g<<s<<'\n';}} | ^~~~ main.cpp: In function 'int main()': main.cpp:18:108: warning: operation on 'k' may be undefined [-Wsequence-point] 18 | main(){f>>n>>m;for(q=0;q<n;q++){f>>j;for(i=2;p=j%i,i<21;A[i++][p][k]=j)for(k=5;k&&j>A[i][p][k-1];)A[i][p][k--]=A[i][p][k-1];}for(q=0;q<m;q++){f>>k>>p;s=-1;h(k,0,0);g<<s<<'\n';}} | ~^~