华为OD day42-day51

long long 最大为9,223,372,036,854,775,807，处理过大的数是要用字符串#include <iostream>#include <string>using namespace std;int main(){ string a; cin>>a; char last=a.back(); if(last=='0' || last=='2' || last=='4' || last=='6' || last=='8'){ cout<<"even"; ...