计挑赛往年真题练习

超、凢脫俗 2022-09-14 14:28 177阅读 0赞

**c程序设计题**

## 1-1 ##

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代码

#include<stdio.h>
    #include<stdlib.h>
    #include<string.h>
    #define N 1000
    main()
    {
    	char s[N];
    	scanf("%s",s);
    	int len,i,j;
    	len=strlen(s);
    	for(i=0;i<len;i++)
        {
            if(s[i]>='A'&&s[i]<='Z')
            {
                s[i]='z'+('A'-s[i]);
            }
            else if(s[i]>='a'&&s[i]<='z')
            {
                s[i]='Z'+('a'-s[i]);
            }
        }
    	for(j=0;j<len;j++)
        {
            printf("%c",s[j]);
        }
    }

## 1-2 ##

![在这里插入图片描述][watermark_type_ZHJvaWRzYW5zZmFsbGJhY2s_shadow_50_text_Q1NETiBA5bCP5pyx5a2m6ZW_size_20_color_FFFFFF_t_70_g_se_x_16 2]  
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代码

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