【十二月】第三次课堂练习

P1914

#include<iostream>
#include<string.h>
using namespace std;
int main()
{
    char s[51];
    int n;
    scanf("%d",&n);
    scanf("%s",s);
    for(int i=0;i<strlen(s);i++)
    {
        for(int j=1;j<=n;j++)
        {
            s[i]++;
            if(s[i]>'z')
            s[i]='a';
        }
    }
    printf("%s",s);
    return 0;
}

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 P1957

#include<stdio.h>
#include<stdlib.h>
#include<string.h>
int len(int a)
{
    int c = a / 10;
    int num = 1;
    while(c != 0)
    {
        c = c / 10;
        num ++;
    }
    return num;
}
void fun(char data1[],char data2[],char symble)
{
    int len1 = strlen(data1);
    int len2 = strlen(data2);
    int sum1 = 0,sum2 = 0;//计算两个字符串代表的数据
    for(int j = 0; j < len1; j ++)
    {
        sum1 = data1[j] - '0' + sum1 * 10;
    }
    for(int j = 0; j < len2; j ++)
    {
        sum2 = data2[j] - '0' + sum2 * 10;
    }
    int sum = 0;
    if(symble == 'a')
    {
        sum = sum1 + sum2;
        printf("%s+%s=%d\n",data1,data2,sum);
        if(sum < 0)
            printf("%d\n",len1 + len2 + 3 + len(sum));
        else
            printf("%d\n",len1 + len2 + 2 + len(sum));
    }
    if(symble == 'b')
    {
        sum = sum1 - sum2;
        printf("%s-%s=%d\n",data1,data2,sum);
        if(sum >= 0)
            printf("%d\n",len1 + len2 + 2 + len(sum));
        else
            printf("%d\n",len1 + len2 + 3 + len(sum));
    }
    if(symble == 'c')
    {
        sum = sum1 * sum2;
        printf("%s*%s=%d\n",data1,data2,sum);
        if(sum >= 0)
            printf("%d\n",len1 + len2 + 2 + len(sum));
        else
            printf("%d\n",len1 + len2 + 3 + len(sum));
    }
}
int main()
{
    char data1[1000];
    char data2[1000];
    char symble;
    int n;
    scanf("%d",&n);
    for(int i = 0; i < n; i ++)
    {
        scanf("%s",data1);//接受第一个字符串
        if(data1[0] == 'a' || data1[0] == 'b' || data1[0] == 'c')//为三数据输入
        {
            symble = data1[0];
            scanf("%s%s",data1,data2);
            fun(data1,data2,symble);
        }
            else
            {
                scanf("%s",data2);
                fun(data1,data2,symble);
            }
    }
    return 0;
}

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标签：课堂练习,十二月,int,sum,printf,data2,data1,symble,第三次
来源： https://www.cnblogs.com/orange-/p/15704394.html