View Code of Problem 3855

#include<iostream>
#include<cstring>
#include<algorithm>
#include<queue>
#include<stdio.h>
#include<string.h>
#include<cmath>
using namespace std;
int main()
{
   int times;
   cin>>times;
   while(times--)
   {
       string str;
       cin>>str;
       int flag=1;
       int num=0,sum=0;
       for(int i=0;i<str.length();i++)
       {
           if(str[i]=='+')
            {
                flag=1;
            }
            else if(str[i]=='-')
           {
                 flag=0;
           }
           else {
          int tem=0;
              while(1){
               if(str[i]>='0'&&str[i]<='9')
               {
                  tem=tem*10+str[i]-'0';
                  i++;
               }
               else {i--;break;}
           }
         // cout<<tem<<endl;
          if(flag==1)
            sum+=tem;
          else sum-=tem;}
          //flag=0;
       }
       cout<<sum<<endl;
   }
   return 0;
}