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实验一

时间:2023-03-08 20:45:26浏览次数:31  
标签:10 main return int 实验 printf include

1.1

#include<stdio.h>
int main()
{
    printf(" o \n");       
    printf("<H>\n");    
    printf("I I\n");    
    printf(" o \n");        
    printf("<H>\n");    
    printf("I I\n");   
    
    return 0;
}

1.2

 

#include<stdio.h>
int main()
{
    printf(" o     o\n");       
    printf("<H>   <H>\n");    
    printf("I I   I I\n");    
     
    return 0;
 } 

 

 



 


 

2.1
#include <stdio.h>

int main()
{
    int n, sum;
    scanf("%d",&n);
    sum = n*(n+1)/2;
    printf("sum = %d\n", sum);

    return 0;
}

写法1,2满足要求。3,4有误差。

3.1

 

#include <stdio.h>

int main()
{
    int a, b, t;

    a = 3;
    b = 4;
    printf("a= %d, b=%d\n", a, b);

    t = a;
    a = b;
    b = t;
    printf("a = %d,b = %d\n", a, b);

    return 0;
}

功能:将a,b输出值互换

4.1

#include <stdio.h>

int main()
{
    int x, t, m;

    x = 123;
    printf("x = %d\n", x);

    t = 0;

    m = x % 10;
    t = t * 10 + m;
    x = x / 10;

    m = x % 10;
    t = t * 10 + m;
    x = x / 10;

    m = x % 10;
    t = t * 10 + m;
    x = x / 10;

    printf("t = %d\n", t);

    return 0;

}

结论:使abc变成cba

 

5.1

#include <stdio.h>

int main()
{
    float a, b, c;
    scanf("%f%f%f", &a, &b, &c);
    if (a + b >c )
        printf("能构成三角形\n");
    else
        printf("不能构成三角形\n");

    return 0;
}

6.1

#include <stdio.h>

int main()
{
    int year;
    
    year = 1000000000/60/60/24/365;
    
    printf("10亿秒约等于%d年\n", year);
    
    return 0;
}

7.1

#include <stdio.h>
#include <stdlib.h>
#include <time.h>

int main()
{
    int n;

    srand(time(0));
    n = rand() % 41 + 60;

    printf("n = %d\n", n);

    return 0;
}

随机数不一样

8.1

#include <stdio.h>
int main()
{
    char ans1, ans2;

    printf("每次上课前认真预习、课后认真复习了没有?(输入y或者Y表示有,输入n或者N表示没有) : ");
    ans1 = getchar();

    getchar();

    printf("\n动手敲代码实践了吗?(输入y或者Y表示有,输入n或者N表示没有) : ");
    ans2 = getchar();

    if ((ans1 == 'Y' or ans1 == 'y') && (ans2 == 'y' or ans2 == 'Y'))
        printf("\n罗马不是一天建成的,请继续保持哦:)\n");
    else
        printf("\n罗马不是一天毁灭的,我们来建设吧\n");

}

 

 

 

 

标签:10,main,return,int,实验,printf,include
From: https://www.cnblogs.com/ry202283300666/p/17196182.html

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