for loop in C with example

for loop in C:

In the c programming or any other programming language for loop is used to repeat a block of code until the specified condition met or satisfied. for is a widely used loop in the programming language.

Syntax of for loop in C:

for (initializationStatement; testExpression; updateStatement)
{
    // statements inside the body of loop
}

if the condition lies between  "initialisationStatement " and "testExpression" then code inside the for  block executes otherwise dose not execute. and after every execution "updateStatement"  update the statement.

Flow chart of for loop in C:

Example of for loop in C:

problem statement-1: In this problem statement we need to print 1 to 10 by using the for loop in c language.

// Print numbers from 1 to 10
#include <stdio.h>
int main() {
  int i;
  for (i = 1; i < 11; ++i)
  {
    printf("%d ", i);
  }
  return 0;
}

Output:

1 2 3 4 5 6 7 8 9 10

problem statement-2: write the code in C  by using for loop for print the given star formation.

Input:

5

Output:

*

**

***

****

*****

/* C Program to Print Right Angled Triangle Star Pattern */
#include <stdio.h>
 
int main() 
{
  int Rows, i, j;
	
  printf("Please Enter the Number of Rows:  ");
  scanf("%d", &Rows);
	
  
  for ( i = 1 ; i <= Rows; i++ ) 
  {
      for ( j = 1 ; j <= i; j++ ) 
      {
          printf("* ");
      }
      printf("\n");
  }
  return 0;
}