第1道题
他的提交记录:https://www.luogu.com.cn/record/170591629
题目:https://www.luogu.com.cn/problem/P5965
题解:https://www.luogu.com.cn/article/6il7ip98
第2题:
他的提交记录:https://www.luogu.com.cn/record/171082806
题目:https://www.luogu.com.cn/problem/P7183
题解:https://www.luogu.com.cn/article/jmx6bupy
第3题:
他的提交记录:https://www.luogu.com.cn/record/171085837
题目:https://www.luogu.com.cn/problem/P7774
题解:https://www.luogu.com.cn/article/wrunrrtf 这道题他只是改了个变量名和cin,cout