View Code of Problem 3855

#include<iostream>
using namespace std;
int main(){
	int t;
	cin>>t;
	getchar();
	for(int i=0;i<t;i++){
		int sum=0;
		string s;
		getline(cin,s);
		for(int i=0;i<s.size();){
			if(s[i]=='+'||s[i]=='-'){
				int flag=0,j;
				if(s[i]=='-') flag=1;
				for(j=i+1;s[j]>='0'&&s[j]<='9';j++);
				int temp=stoi(s.substr(i+1,j-i-1));
				if(flag==1) sum-=temp;
				else	sum+=temp;
				i=j;
			}
			else{
				sum+=s[i]-'0';
				i++;
			}
		}
		cout<<sum<<endl;
	}
} 

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