#include<iostream>
#include<cstdlib>

using namespace std;

struct numble
{
public:
    int i;
}numble;

main()
{
    scanf("%d",&numble);
    numble=numble+1;
    numble=numble+2;
    numble=numble+3;
    ...
    numble=numble+100
    cout<<numble;
}

numble=numble+1;
number是什么?

基本概念都没搞清