摘要：
#include <iostream>#include <vector>#include <cstdio>using namespace std;int main(){ int n; cin >> n; vector<int> neg,zero,pos; int a; for(int i = 0; i < n; i ++ ) { cin >>a; if(a > 0) pos.push_back(a); else if(a < 0) neg.push_back(a); else zero.push_back 阅读全文