2、对于逻辑量表达式1表示真，0表示假。
对于逻辑量表达式非0表示真，0表示假。
3、值得注意的是c语言中的优先级，优先级由高到低依次为：
4、
1 #include<stdio.h>
2 int main()
3 {
4 int a,b,c,t;
5 scanf("%d,%d,%d",&a,&b,&c);
6 if(a<b)
7 {t=b;
8 a=b;
9 b=t;}
10 if(a<c)
11 {t=c;
12 a=c;
13 c=t;}
14 printf("最大的是：%d\n",a);
15 return 0;
16 }
法2：
1 #include<stdio.h>
2 int main()
3 {
4 int a,b,c,temp,max;
5 scanf("%d,%d,%d",&a,&b,&c);
6 temp=(a>b)?a:b;
7 max=(temp>c)?temp:c;
8 printf("最大的是：%d\n",max);
9 return 0;
10 }
5、
1 #include<stdio.h>
2 #include<math.h>
3 int main()
4 {
5 int a,b;
6 scanf("%d",&a);
7 if(a>=1000)
8 {printf("enter again:\n");
9 scanf("%d",&a);}
10 b=sqrt(a);
11 printf("%d\n",b);
12 return 0;
13 }
8、
1 #include<stdio.h>
2 int main()
3 {
4 float score;
5 char grad;
6 printf("enter score:");
7 scanf("%f",&score);
8 while(score>100||score<0)
9 {printf("enter again:");
10 scanf("%f",&score);
11 }
12 switch((int)(score/10))
13 {case 10:
14 case 9:grad=‘A‘;break;
15 case 8:grad=‘B‘;break;
16 case 7:grad=‘C‘;break;
17 case 6:grad=‘B‘;break;
18 case 5:
19 case 4:
20 case 3:
21 case 2:
22 case 1:
23 case 0:grad=‘E‘;
24 }
25 printf("成绩是：%5.1f,等级是： %c\n",score,grad);
26 return 0;
27 }
9、给一个不多于五位的正整数，奥球
求出它是几位数，分别是出每一位数字，按逆序输出各位数字
1 #include<stdio.h>
2 #include<math.h>
3 int main()
4 {
5 int num,indiv,ten,hundred,thousand,ten_thousand,place;
6 printf("请输入一个不多于5位的整数:");
7 scanf("%d",&num);
8 if(num>9999)
9 place=5;
10 else
11 if(num>999)
12 place=4;
13 else
14 if(num>99)
15 place=3;
16 else
17 if(num>9)
18 place=2;
19 else
20 place=1;
21 printf("位数：%d\n",place);
22 printf("每位数字为\n");
23 ten_thousand=num/10000;
24 thousand=(int)(num-ten_thousand*10000)/1000;
25 hundred=(int)(num-ten_thousand*10000-thousand*1000)/100;
26 ten=(int)(num-ten_thousand*10000-thousand*1000-hundred*100)/10;
27 indiv=(int)(num-ten_thousand*10000-thousand*1000-hundred*100-ten*10);
28 switch(place)
29 {
30 case 5:printf("%d,%d,%d,%d,%d",ten_thousand,thousand,hundred,ten,indiv);
31 printf("\n反序数字为\n");
32 printf("%d%d%d%d%d",indiv,ten,hundred,thousand,ten_thousand);
33 break;
34 case 4:printf("%d,%d,%d,%d",thousand,hundred,ten,indiv);
35 printf("\n反序数字为\n");
36 printf("%d%d%d%d",indiv,ten,hundred,thousand);
37 break;
38 case 3:printf("%d,%d,%d",hundred,ten,indiv);
39 printf("\n反序数字为\n");
40 printf("%d%d%d",indiv,ten,hundred);
41 break;
42 case 2:printf("%d,%d",ten,indiv);
43 printf("\n反序数字为\n");
44 printf("%d%d",indiv,ten);
45 break;
46 case 1:printf("%d",indiv);
47 printf("\n反序数字为\n");
48 printf("%d",indiv);
49 break;
50 }
51 return 0;
52 }
12、判断是否在塔外
1 #include<stdio.h>
2 int main()
3 {
4 int h=10;
5 float x1=2,y1=2,x2=-2,y2=2,x3=-2,y3=-2,x4=2,y4=-2,x,y,d1,d2,d3,d4;
6 printf("请输入x,y: ");
7 scanf("%f,%f",&x,&y);
8 d1=(x-x4)*(x-x4)+(y-y4);
9 d2=(x-x1)*(x-x1)+(y-y1)*(y-y1);
10 d3=(x-x2)*(x-x2)+(y-y2)*(y-y2);
11 d4=(x-x3)*(x-x3)+(y-y3)*(y-y3);
12 if(d1>1&&d2>1&&d3>1&&d4>1)
13 h=0;
14 printf("高度为:%d\n",h);
15 return 0;
16 }
原文地址：https://www.cnblogs.com/1998wdq/p/11221578.html
时间： 2024-10-10 02:17:25