├── booked seat numbers with its located place
├── calculate the days of the month
├── find amestrong number
├── given is digit or character
└── voting age


/booked seat numbers with its located place:
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 1 | 
 2 | #include<stdio.h>
 3 | int main()
 4 | {
 5 |     int n;
 6 |     printf("enter the number:");
 7 |     scanf("%d",&n);
 8 |     if(n>=1 && n<=72){
 9 |     switch(n%8)
10 |     {
11 |         case 0:
12 |         printf("side upper\n");
13 |         break;
14 |         case 1:
15 |         printf("lower\n");
16 |         break;
17 |         case 2:
18 |         printf("middle\n");
19 |         break;
20 |         case 3:
21 |         printf("upper\n");
22 |         break;  
23 |         case 4:
24 |         printf("lower\n");
25 |         break;
26 |           case 5:
27 |         printf("middle\n");
28 |         break;  
29 |         case 6:
30 |         printf("upper\n");
31 |         break;
32 |         case 7:
33 |         printf("side lower\n");
34 |         break;}}
35 |         else{
36 |             printf("invalid");
37 |         }
38 |     return 0;
39 | }
40 | 


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/calculate the days of the month:
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 1 | #include <stdio.h>
 2 | int main() {
 3 |     int month;
 4 |     int year; 
 5 |     printf("Enter the year: ");
 6 |     scanf("%d", &year);
 7 |     printf("Enter the month (1-12): ");
 8 |     scanf("%d", &month);
 9 |        if (month < 1 || month > 12) {
10 |         printf("Invalid month\n");
11 |         return 1;}
12 |     if (month == 1 || month == 3 || month == 5 || month == 7 || month == 8 || month == 10 || month == 12) {
13 |         printf(" 31 days\n", month, year);
14 |         printf("valid month\n");                    
15 |     } else if (month == 4 || month == 6 || month == 9 || month == 11) {
16 |         printf(" 30 days\n", month, year);
17 |         printf("valid month\n");
18 |     } else if (month == 2) {
19 |         if ((year % 4 == 0 && year % 100 != 0) || (year % 400 == 0)) {
20 |             printf(" 29 days (leap year)\n", month, year);
21 |         } else {
22 |             printf(" 28 days(not a leap year)\n", month, year);
23 |         }printf("valid month\n");
24 |     }
25 |     return 0;
26 | }
27 | 


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/find amestrong number:
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 1 | #include<stdio.h>
 2 | int main(){
 3 |     int n=1;
 4 |       while(n<10000000){
 5 |     int a[n];
 6 |     int sum=0;
 7 |     int c=0;
 8 |     int t1=n;
 9 |     int t2=n;
10 |     while(n!=0){c++;
11 |         n=n/10;
12 |     }
13 |     while(t1!=0){
14 |     int l=t1%10;
15 |     int p=1;
16 |     int f=c;
17 |     while(f!=0){
18 |         p=p*l;  
19 |         f--;
20 |     }
21 |         t1=t1/10;
22 |          sum=sum+p;
23 |     }if(sum==t2)
24 |   {
25 |     printf("%d \n",t2);    
26 |   }
27 |   n=t2;
28 |   n++;
29 | }
30 |     return 0;
31 | }
32 | 


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/given is digit or character:
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 1 | 
 2 |  #include<stdio.h>
 3 |  int main (){
 4 |      int a;
 5 |      scanf("%d",&a);
 6 |      char b[1000];
 7 |      if(a==b[1000]) 
 8 |      {
 9 |          printf("the given is character\n");
10 |      }
11 |      else{
12 |          printf("the given is digit\n");
13 |      }
14 |      return 0;
15 |  }
16 | 


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/voting age:
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 1 | #include<stdio.h>
 2 |  int main(){
 3 |      int age;
 4 |      char a[100];
 5 |      scanf("%s%d",&a,&age);
 6 |      printf("name:%s\n",a);
 7 |      printf("age:%d\n",age);
 8 |      if(age>18){
 9 |          printf("ELIGIBLE TO VOTE\n");
10 |      }
11 |      else{
12 |          printf("NOT ELIGIBLE TO VOTE\n");
13 |      }
14 |      return 0;
15 |  }
16 | 


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