Pro2

原始文件为 CPP 代码，本文是转换后的 Markdown 文件。

#include <iostream>
#include <sstream>
#include <cstring>
#include <cstdio>
#include <string>
#include <cstdlib>
#include <vector>
#include <map>
#include <algorithm>
#include <stack>

using namespace std;

int compute(int a,char op,int b)
{
    if (op == '+') return a+b;
    else if (op == 'x') return a*b;
    else if (op == '/') return a/b;

    return a-b;
}
int main()
{
    freopen("in.txt","r",stdin);

    int n; scanf("%d",&n);
    cin.get();
    string line;
    for (int i = 0; i < n; ++i)
    {
        getline(cin,line);

        int ans = 0;
        if (line[1]=='+'||line[1]=='-')
        {
            if (line[3]=='+'||line[3]=='-')
            {
                if (line[5]=='+'||line[5]=='-')
                {
                    ans = compute((line[0]-'0'),line[1],(line[2]-'0'));
                    ans = compute(ans,line[3],(line[4]-'0'));
                    ans = compute(ans,line[5],(line[6]-'0'));
                }else
                {
                    ans = compute((line[0]-'0'),line[1],(line[2]-'0'));
                    int temp = compute((line[4]-'0'),line[5],(line[6]-'0'));
                    ans = compute(ans,line[3],temp);
                }
            }else
            {
                if (line[3]=='+'||line[3]=='-')
                {
                    int temp = compute((line[2]-'0'),line[3],(line[4]-'0'));
                    ans = compute((line[0]-'0'),line[1],temp);
                    ans = compute(ans,line[5],(line[6]-'0'));
                }else
                {
                    int temp = compute((line[2]-'0'),line[3],(line[4]-'0'));
                    temp = compute(temp,line[5],(line[6]-'0'));
                    ans = compute((line[0]-'0'),line[1],temp);
                }
            }
        }else
        {
            if (line[3]=='+'||line[3]=='-')
            {
                if (line[5]=='+'||line[5]=='-')
                {
                    ans = compute((line[0]- '0'),line[1],(line[2]-'0'));
                    ans = compute(ans,line[3],(line[4]-'0'));
                    ans = compute(ans,line[5],(line[6]-'0'));
                }else
                {
                    ans = compute((line[0]-'0'),line[1],(line[2]-'0'));
                    int temp = compute((line[4]-'0'),line[5],(line[6]-'0'));
                    ans = compute(ans,line[3],temp);
                }
            }else
            {
                ans = compute((line[0]-'0'),line[1],(line[2]-'0'));
                ans = compute(ans,line[3],(line[4]- '0'));
                ans = compute(ans,line[5],(line[6]-'0'));
            }
        }

        if (ans == 24)
            printf("Yes\n");
        else
            printf("No\n");

    }
}