35 lines
603 B
C++
35 lines
603 B
C++
#include<iostream>
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#include<stack>
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using namespace std;
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typedef long long ll;
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stack<ll> s;
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int main(){
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int i;
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cin>>i;
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char f;
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s.push(i);
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while(cin>>f){
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cin>>i;
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if(f=='+'){
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s.push(i);
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}else if(f=='-'){
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s.push(-i);
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}else if(f=='*'){
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int h = s.top();
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s.pop();
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s.push(h*i);
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}else{
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int h = s.top();
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s.pop();
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s.push(h/i);
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}
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}
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int ans = 0;
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while(s.empty()==false){
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ans+=s.top();
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s.pop();
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}
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cout<<ans<<endl;
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} |