#include <string> #include <iostream> using namespace std; int main(){ bool a[101] = {0}; int n = 10,m = 1,i,f=0,t=0,s=0; while(f != 1000){ t++; if(t>n) t=1; s++; if(s==m){ s=0; a[t] = 1; f++; m++; } } for(int i=1; i<=n; i++){ if(!a[i]) cout<<i<<" "; } return 0; }