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35 lines
764 B
C++
35 lines
764 B
C++
#include <bits/stdc++.h>
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using namespace std;
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int main() {
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stack<int> st;
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char ch;
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int a, b, t = 0;
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while (cin >> ch, ch != '@') {
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if (ch == '.') {
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st.push(t);
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t = 0;
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} else if ('0' <= ch && ch <= '9') {
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t *= 10;
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t += ch - '0';
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} else {
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b = st.top();
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st.pop();
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a = st.top();
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st.pop();
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if (ch == '+') {
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st.push(a + b);
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} else if (ch == '-') {
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st.push(a - b);
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} else if (ch == '*') {
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st.push(a * b);
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} else if (ch == '/') {
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st.push(a / b);
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}
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}
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}
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cout << st.top() << endl;
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return 0;
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}
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