c语言 9-12

1、

#include <stdio.h>

void rev(char x[][128], int n)
{
    int i;
    for(i = 0; i < n; i++)
    {
        int len = 0;
        while(x[i][len])
            len++;
        int j = 0;
        while(x[i][j])
            putchar(x[i][len - 1 - j++]);
        putchar('
');
    }
}

int main(void)
{
    char str[][128] = {"SEC","ABC"};
    rev(str, 2);
    return 0;
}

2、

#include <stdio.h>

int prin(char x[][128], int n)
{
    int i;
    for(i = 0; i < n; i++)
    {
        int j = 0;
        while(x[i][j])
            j++;
        while(j--)
            putchar(x[i][j]);
        putchar('
');
    }
}

int main(void)
{
    char str[][128] = {"abcd", "xyzop"};
    prin(str, 2);
    return 0;
}

3、

#include <stdio.h>

void pri(char x[][128], int n)
{
    int i;
    char tmp[n][128];
    for(i = 0; i < n; i++)
    {
        int len = 0;
        while(x[i][len])
            len++;
        int j = 0;
        while(x[i][j])
        {
            tmp[i][j] = x[i][len - 1 - j];
            j++;    
        } 
    }
    for(i = 0; i < n; i++)
    {
        int k = 0;
        while(x[i][k])
        {
            x[i][k] = tmp[i][k];
            k++;
        }
    }
    for(i = 0; i < n; i++)
    {
        printf("%s
", x[i]);
    }
}

int main(void)
{
    char str[][128] = {"abcd", "xyz"};
    pri(str, 2);
    return 0;
}

4、

#include <stdio.h>

void prin(char x[][128], int n)
{
    int i, j;
    for(i = 0; i < n; i++)
    {
        int len = 0;
        while(x[i][len])
            len++;
        for(j = 0; j < len / 2; j++)
        {
            int tmp = x[i][j];
            x[i][j] = x[i][len - 1 - j];
            x[i][len - 1 - j] = tmp;
        }
    }
    for(i = 0; i < n; i++)
    {
        printf("%s
", x[i]);
    }
}

int main(void)
{
    char str[][128] = {"abcd","mnop","123456"};
    prin(str, 3);
    return 0;
}

5、

#include <stdio.h>

void print(char x[][128], int n)
{
    int i;
    char tmp[n][128];
    for(i = 0; i < n; i++)
    {
        int len = 0;
        while(x[i][len])
            len++;
        int j = 0;
        for(j = 0; j < len; j++)
        {
            tmp[i][j] = x[i][len - 1 - j];
        }
        for(j = 0; j < len; j++)
        {
            x[i][j] = tmp[i][j];
        }
    }
    for(i = 0; i < n; i++)
    {
        printf("%s
", x[i]);
    }
}

int main(void)
{
    char str[][128] = {"abcde", "mnopq", "12345678"};
    print(str, 3);
    return 0;
}