prowessapps.in Series programs in C

 C Program to print the following series 1 2 3 4 ..... n.

int main( ) {
 int n, i;
 printf("Enter Value for N : ");
 scanf("%d", &n);
 for(i=1; i<=n; i++) {
  printf("%d ", i);
 }
 printf("\n");
 return 0;
}
OUTPUT :
Enter Value for N: 11
1 2 3 4 5 6 7 8 9 10 11

 C Program to print the following series. 2 4 6 8 10 . . . . . . . n.

#include<stdio.h>
int main( ) {
 int n, i;
 printf("Enter Value for N : ");
 scanf("%d", &n);
 for(i=1; i<=n; i++) {
  if(n%2 == 0) {
   printf("%d ", i);
  }
 }
 printf("\n");
 return 0;
}
OUTPUT :
Enter Value for N: 15
2 4 6 8 10 12 14

 C Program to print the following series. 1 3 5 7 9 .....n.

#include<stdio.h>
int main( ) {
 int n, i;
 printf("Enter Value for N : ");
 scanf("%d", &n);
 for(i=1; i<=n; i++) {
  if(n%2 != 0) {
   printf("%d ", i);
  } 
 }
 printf("\n");
 return 0;
}
OUTPUT :
Enter Value for N: 15
1 3 5 7 9 11 13 15

 C Program to print the following series. 3 6 9 12 15 ... n terms.

#include<stdio.h>
int main( ){
int n, i, value;
printf("Enter Value for N : ");
scanf("%d", &n);
for(i=1; i<=n; i++) {
value = i*3;
printf("%d ", value);
}
printf("\n");
return 0;
}
OUTPUT :
Enter Value for N: 10
3 6 9 12 15 18 21 24 27 30

 C Program to print the following series. 1 3 7 15 31 . . . . . . . upto n times.

#include<stdio.h>
#include<math.h>
int main( ) {
 int n, i, value=0;
 printf("Enter Value for N : ");
 scanf("%d", &n);
 for(i=0; i<=n; i++) {
  value = value + pow(2, i);
  printf("%d ", value);
 }
 printf("\n");
 return 0;
}
OUTPUT :
Enter Value for N: 6
1 3 7 15 31 63

 C Program to print all prime numbers till 20.

#include<stdio.h >
int main( ) {
 int i, j, factors;
 for(n=2; j<=20; n++) {
  factors = 0;
  for(i=1; i<=n ; i++) {
   if(n%i == 0) {
    factors++
   }
  } 
  if(factors == 2) {
   printf("%d ",n);
  }
 }  return 0;
}
OUTPUT :
2 3 5 7 11 13 17 19


  C Program to print the following febonnaci series 0 1 1 2 3 5 8 13 21 ... upto n times.

#include<stdio.h>
int main( ){
 int i, a,b,c;
 printf("Enter Value for N : ");
 scanf("%d", &n);
 a = -1;
 b = 1;
 for(i=0; i < n; i++) {
  c = a+b;
  printf("%d ",c);
  a = b;
  b = c;
 }
 printf("\n");
 return 0;
}
OUTPUT :
Enter Value for N : 8
0 1 1 2 3 5 8 13

 C Program to print to print the following series. 1 2 2 3 3 3 4 4 4 4.

#include<stdio.h>
int main( ) {
 int i,j;
 for(i=1; i<=4; i++) {
  for(j=1; j<=i; j++) {
  printf("%d ",i);
  }
 }
 printf("\n");
 return 0;
}
OUTPUT :
1 2 2 3 3 3 4 4 4 4

 C Program to print the following series. 0 1 3 6 10 15 21 upto n terms.

#include<stdio.h>
int main( ) {
 int n,i,j=0;
 printf("Enter a value for N : ");
 scanf("%d",&n);
 for(i = 1; i<=n; i++) {
  printf("%d ",j);
  j = j+i;
 }
 printf("\n");
 return 0;
}
OUTPUT :
Enter a value for N : 8
0 1 3 6 10 15 21 28




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