标签:div tput using har scanf second turn 输出 appear
Input
The input contains several test cases. Each test case contains two lines. The first line consists of an odd integer N(1<=N<=999999) which indicate the number of the integers feng5166 will tell our hero. The second line contains the N integers. The input is terminated by the end of file.
Output
For each test case, you have to output only one line which contains the special number you have found.
Sample Input
5 1 3 2 3 3 11 1 1 1 1 1 5 5 5 5 5 5 7 1 1 1 1 1 1 1
Sample Output
3 5 1
解题思路:
本题给出多组数据每组数据给出一个数n,下一行给出n个数,要求找出出现次数超过一半的数字。
试想一个数的数量超过总数的一半其出现次数一定是所有的数中出现最多的那个数,我们就可以在输入时用一个ans记录当前出现次数最多的数,cnt记录ans比其他数的出现次数多多少。每当cnt等于0时便说明在当前输入已经输入完的数中ans所代表的数出现的次数不足一半,则cnt重新记录一个数,输入结束后获得的ans即为所取数。
AC代码
#include <bits/stdc++.h> using namespace std; int main() { int n; while(scanf("%d", &n) != EOF){ int ans, cnt = 0, temp; //ans记录当前出现次数最多的数,cnt记录ans比其他数的出现次数多多少 //temp记录当前输入的数 for(int i = 0; i < n; i++){ scanf("%d", &temp); if(cnt == 0){//cnt等于0重新记录一个数 ans = temp; cnt++; }else if(ans == temp){ cnt++; //输入的数等于ans cnt++ }else{ cnt--; } } printf("%d\n", ans); //输出答案 } return 0; }
HDU 1029 Ignatius and the Princess IV
标签:div tput using har scanf second turn 输出 appear
原文地址:https://www.cnblogs.com/suvvm/p/10083113.html