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22 lines
476 B
22 lines
476 B
#include<bits/stdc++.h>
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using namespace std;
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stack<char> p;
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int main() {
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char c;
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while (cin >> c) {
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if (c == '-')cout << ("-");//判断正负，如果是负就直接输出，不压栈
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else p.push(c);//否则压进栈里
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}
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//有多少个删除掉多少个
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while (p.top() == '0')//删除前导0
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p.pop();
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//输出
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while (!p.empty())//最后输出反转数
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{
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cout << p.top();
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p.pop();
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}
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return 0;
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} |