hdu1870 蠢人节的礼物
hdu1870 愚人节的礼物
题目:点击打开链接
今个儿携程要是这么简单就好了。。
不是‘(’就是‘)’,如果出现了B,那么清空栈,最后+1取相反数。其实根本用不着存进去- -。。直接假装有个栈就行。。
The reason I wrote it is I feel traumatized by the competition......TAT
#include <iostream> using namespace std; int main() { char str[1001]; int top, i, j; while(cin >> str){ top = -1; for(i = 0; str[i] != '\0'; i++){ char &ch = str[i]; if(ch == '(') top++; else if(ch == ')') top--; else top = -1; }//end i cout << -(top + 1) <<endl; }//end str return 0; }