time limit per test
1 second
memory limit per test
256 megabytes
input
standard input
output
standard output
Recently, Tema and Vika celebrated Family Day. Their friend Arina gave them a carpet, which can be represented as an n⋅m�⋅� table of lowercase Latin letters.
Vika hasn't seen the gift yet, but Tema knows what kind of carpets she likes. Vika will like the carpet if she can read her name on. She reads column by column from left to right and chooses one or zero letters from current column.
Formally, the girl will like the carpet if it is possible to select four distinct columns in order from left to right such that the first column contains "v", the second one contains "i", the third one contains "k", and the fourth one contains "a".
Help Tema understand in advance whether Vika will like Arina's gift.
Input
Each test consists of multiple test cases. The first line of input contains a single integer t� (1≤t≤1001≤�≤100) — the number of test cases. Then follows the description of the test cases.
The first line of each test case contains two integers n�, m� (1≤n,m≤201≤�,�≤20) — the sizes of the carpet.
The next n� lines contain m� lowercase Latin letters each, describing the given carpet.
Output
For each set of input data, output "YES" if Vika will like the carpet, otherwise output "NO".
You can output each letter in any case (lowercase or uppercase). For example, the strings "yEs", "yes", "Yes", and "YES" will be accepted as a positive answer.
Example
input
Copy
5
1 4
vika
3 3
bad
car
pet
4 4
vvvv
iiii
kkkk
aaaa
4 4
vkak
iiai
avvk
viaa
4 7
vbickda
vbickda
vbickda
vbickda
output
Copy
YES NO YES NO YES
Note
In the first sample, Vika can read her name from left to right.
In the second sample, Vika cannot read the character "v", so she will not like the carpet.文章来源:https://www.toymoban.com/news/detail-693507.html
解题说明:此题是一道字符串题,直接遍历,判断列中是否存在对应的字母。文章来源地址https://www.toymoban.com/news/detail-693507.html
#include <stdio.h>
int main()
{
int t;
scanf("%d", &t);
while (t--)
{
int n, m;
scanf("%d %d ", &n, &m);
char str[20][20];
char name[5] = "vika";
int i, j;
int b = 0, c = 0;
for (i = 0; i < n; i++)
{
for (j = 0; j < m; j++)
{
scanf(" %c", &str[i][j]);
}
}
j = 0;
for (j = 0; j < m; j++)
{
for (i = 0; i < n; i++)
{
if (str[i][j] == name[b])
{
b++;
c++;
break;
}
}
}
if (c == 4)
{
printf("yes\n");
}
else
{
printf("no\n");
}
}
return 0;
}
到了这里,关于A. Gift Carpet的文章就介绍完了。如果您还想了解更多内容,请在右上角搜索TOY模板网以前的文章或继续浏览下面的相关文章,希望大家以后多多支持TOY模板网!