algorithmStudy/1541.cpp at master · judy5050/algorithmStudy · GitHub

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//
//  1541.cpp
//  algo
//
//  Created by 박효정 on 2021/05/28.
//

#include <iostream>
#include <algorithm>
#include <vector>
#include <cstring>
#include <string>

using namespace std;

int main(){

    cin.tie(0);
    cout.tie(0);
    std::ios::sync_with_stdio(false);


    string s;
    int res=0;
    bool f=false;
    string tmp;
    cin>>s;
    for(int i=0;i<s.size();i++){

        if(s[i]=='+'||s[i]=='-'){
            if(f==true){
                res-=stoi(tmp);
            }else{

                res+=stoi(tmp);
                if(s[i]=='-'){
                    f=true;
                }

            }
            tmp="";
        }
        else{
            tmp+=s[i];
        }

    }

    if(f==true){
        res-=stoi(tmp);
    }else{
        res+=stoi(tmp);
    }

    cout<<res<<"\n";

    return 0;
}