526互联

Codeforces Round 886 (Div. 4) 全题题解

发布时间 2023-07-23 20:20:48作者: Chen_Jinhui

我关注的人中正式参与比赛排名公示：

# Who = Penalty * A B C D E F G H
1 (980) China Chen_Jinhui 7 381 \(\color{#00CC00}{\textbf{+}}\) 00:05 \(\color{#00CC00}{\textbf{+1}}\) 00:17 \(\color{#00CC00}{\textbf{+}}\) 00:19 \(\color{#00CC00}{\textbf{+}}\) 01:08 \(\color{#00CC00}{\textbf{+}}\) 00:55 \(\color{#00CC00}{\textbf{+}}\) 01:35 \(\color{#00CC00}{\textbf{+}}\) 01:52
2 (4685) China LQ1120241921 5 160 \(\color{#00CC00}{\textbf{+}}\) 00:04 \(\color{#00CC00}{\textbf{+}}\) 00:10 \(\color{#00CC00}{\textbf{+}}\) 00:18 \(\color{#00CC00}{\textbf{+}}\) 01:13 \(\color{#140c34}-2\) \(\color{#00CC00}{\textbf{+}}\) 00:55
3 (5657) China zdrj2025 5 199 \(\color{#00CC00}{\textbf{+}}\) 00:05 \(\color{#00CC00}{\textbf{+}}\) 00:14 \(\color{#00CC00}{\textbf{+}}\) 00:32 \(\color{#00CC00}{\textbf{+}}\) 00:53 \(\color{#00CC00}{\textbf{+1}}\) 01:25
4 (6367) China linzibolzb 5 253 \(\color{#00CC00}{\textbf{+}}\) 00:06 \(\color{#00CC00}{\textbf{+}}\) 00:16 \(\color{#00CC00}{\textbf{+}}\) 00:26 \(\color{#00CC00}{\textbf{+2}}\) 01:00 \(\color{#00CC00}{\textbf{+2}}\) 01:45 \(\color{#140c34}-1\) \(\color{#140c34}-1\)
5 (7679) wy2025 4 62 \(\color{#00CC00}{\textbf{+}}\) 00:06 \(\color{#00CC00}{\textbf{+}}\) 00:11 \(\color{#00CC00}{\textbf{+}}\) 00:18 \(\color{#00CC00}{\textbf{+}}\) 00:27
6 (9024) s_zeratu 4 92 \(\color{#00CC00}{\textbf{+}}\) 00:05 \(\color{#00CC00}{\textbf{+}}\) 00:18 \(\color{#00CC00}{\textbf{+}}\) 00:23 \(\color{#00CC00}{\textbf{+}}\) 00:46
7 (9186) China DCZISSB 4 96 \(\color{#00CC00}{\textbf{+}}\) 00:04 \(\color{#00CC00}{\textbf{+}}\) 00:11 \(\color{#00CC00}{\textbf{+}}\) 00:20 \(\color{#00CC00}{\textbf{+1}}\) 00:51 \(\color{#140c34}-2\)
8 (9484) China c20251917 4 103 \(\color{#00CC00}{\textbf{+}}\) 00:05 \(\color{#00CC00}{\textbf{+}}\) 00:21 \(\color{#00CC00}{\textbf{+}}\) 00:23 \(\color{#00CC00}{\textbf{+}}\) 00:54
9 (9529) China Ariasaka 4 104 \(\color{#00CC00}{\textbf{+}}\) 00:02 \(\color{#00CC00}{\textbf{+}}\) 00:08 \(\color{#00CC00}{\textbf{+}}\) 00:16 \(\color{#00CC00}{\textbf{+}}\) 01:18 \(\color{#140c34}-7\)
10 (11019) China Li_Feiy-i7i 4 141 \(\small\color{gray}{-2}\) \(\color{#00CC00}{\textbf{+}}\) 00:08 \(\color{#00CC00}{\textbf{+}}\) 00:25 \(\color{#00CC00}{\textbf{+}}\) 00:28 \(\color{#00CC00}{\textbf{+1}}\) 01:10 \(\color{#140c34}-2\)
11 (11710) China cyh1105 4 163 \(\color{#00CC00}{\textbf{+}}\) 00:04 \(\color{#00CC00}{\textbf{+}}\) 00:15 \(\color{#00CC00}{\textbf{+}}\) 01:01 \(\color{#00CC00}{\textbf{+}}\) 01:23
12 (11952) China dhaomin 4 172 \(\color{#00CC00}{\textbf{+}}\) 00:03 \(\color{#00CC00}{\textbf{+}}\) 00:36 \(\color{#00CC00}{\textbf{+}}\) 00:35 \(\color{#00CC00}{\textbf{+3}}\) 01:08
13 (14718) czyawa 3 57 \(\color{#00CC00}{\textbf{+}}\) 00:07 \(\color{#00CC00}{\textbf{+}}\) 00:21 \(\color{#00CC00}{\textbf{+}}\) 00:29
14 (18562) z_m_x 3 210 \(\color{#00CC00}{\textbf{+}}\) 01:45 \(\color{#00CC00}{\textbf{+}}\) 01:08 \(\color{#00CC00}{\textbf{+}}\) 00:37
15 (21815) iamchenzh 1 16 \(\color{#00CC00}{\textbf{+}}\) 00:16 \(\color{#140c34}-6\)
16 (21948) China 0930_songzhiyu 1 20 \(\color{#00CC00}{\textbf{+}}\) 00:20 \(\color{#140c34}-3\)
Accepted Tried \(\color{#00CC00}{\text 23198}\) 23269 \(\color{#00CC00}{\text 20370}\) 21272 \(\color{#00CC00}{\text 19959}\) 19987 \(\color{#00CC00}{\text 13233}\) 14229 \(\color{#00CC00}{\text 6535}\) 7658 \(\color{#00CC00}{\text 3335}\) 6428 \(\color{#00CC00}{\text 1330}\) 2226 \(\color{#00CC00}{\text 386}\) 876

题解部分

A - To My Critics

AI 会做的题你不会做？可以退役了。

直接贴代码，不予解释。

//the code is from chenjh
#include<cstdio>
void solve(){
	int a,b,c;scanf("%d%d%d",&a,&b,&c);
	puts(a+b>=10||a+c>=10||b+c>=10?"YES":"NO"); 
}
int main(){
	int T;scanf("%d",&T);
	while(T--) solve(); 
	return 0;
}

B - Ten Words of Wisdom

详细请见 题解 CF1850B Ten Words of Wisdom。

C - Word on the Paper

详细请见 题解 CF1850C Word on the Paper。

D - Balanced Round

详细请见 题解 CF1850D Balanced Round。

E - Cardboard for Pictures

详细请见 题解 CF1850E Cardboard for Pictures。

F - We Were Both Children

详细请见 题解 CF1850F We Were Both Children。

G - The Morning Star

详细请见 题解 CF1850G The Morning Star。

H - The Third Letter

详细请见 Tutorial (en)。