享受 $copy$ 的快乐

#include <iostream>
#include <stack>
#include <cmath>
#include <vector>
#include <string.h>
#include <queue>
#include <stdio.h>
#include <iomanip>
#include <cstdio>
#include <algorithm>
#define LL long long
#define double long double
using namespace std;
const int N = 3e1 + 10;
const int INF = 0x3f3f3f3f;
int a, b;
char op;
signed main()
{
	cin >> a >> op >> b;//按照题意输入
    int ans = 0;//答案
    if(op == '+')
    {
        ans = a + b;//计算答案
        if(ans != 1)//不是1
        {
            printf("steve has %d kuns\n", ans);//kuns
        }
        else
        {
            printf("steve has 1 kun\n");//kun
        }
    }
    //写完就能复制了（喜
    if(op == '-')
    {
        ans = a - b;
        if(ans != 1)
        {
            printf("steve has %d kuns\n", ans);
        }
        else
        {
            printf("steve has 1 kun\n");
        }
        //copy
    }
    if(op == '*')
    {
        ans = a * b;
        if(ans != 1)
        {
            printf("steve has %d kuns\n", ans);
        }
        else
        {
            printf("steve has 1 kun\n");
        }
        //copy
    }
    if(op == '/')
    {
        ans = a / b;
        if(ans != 1)
        {
            printf("steve has %d kuns\n", ans);
        }
        else
        {
            printf("steve has 1 kun\n");
        }
        //copy
    }
	return 0;
}

按照题意模拟即可

#include<bits/stdc++.h>
using namespace std;
int main(){
    int a,b;
    char c;
    cin>>a>>c>>b;
    cout<<"steve has ";
    if(c=='+')cout<<a+b<<(a+b>1?" kuns":" kun");
    else if(c=='-')cout<<a-b<<(a-b>1?" kuns":" kun");
    else if(c=='*')cout<<a*b<<(a*b>1?" kuns":" kun");
    else cout<<a/b<<(a/b>1?" kuns":" kun");
    return 0;
}