C Exercises: Find the Armstrong number for a given range of number
C For Loop: Exercise-30 with Solution
Write a C program to find the Armstrong number for a given range of number.
Sample Solution:
C Code:
/*When the sum of the cube of the individual digits of a number
is equal to that number, the number is called Armstrong number. For example 153.
Sum of its divisor is 13 + 53;+ 33; = 1+125+27 = 153*/
#include <stdio.h>
void main(){
int num,r,sum,temp;
int stno,enno;
printf("Input starting number of range: ");
scanf("%d",&stno);
printf("Input ending number of range : ");
scanf("%d",&enno);
printf("Armstrong numbers in given range are: ");
for(num=stno;num<=enno;num++){
temp=num;
sum = 0;
while(temp!=0){
r=temp % 10;
temp=temp/10;
sum=sum+(r*r*r);
}
if(sum==num)
printf("%d ",num);
}
printf("\n");
}
Sample Output:
Input starting number of range: 1 Input ending number of range : 1000 Armstrong numbers in given range are: 1 153 370 371 407
Flowchart:
C Programming Code Editor:
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C Programming: Tips of the Day
Static variable inside of a function in C
The scope of variable is where the variable name can be seen. Here, x is visible only inside function foo().
The lifetime of a variable is the period over which it exists. If x were defined without the keyword static, the lifetime would be from the entry into foo() to the return from foo(); so it would be re-initialized to 5 on every call.
The keyword static acts to extend the lifetime of a variable to the lifetime of the programme; e.g. initialization occurs once and once only and then the variable retains its value - whatever it has come to be - over all future calls to foo().
Ref : https://bit.ly/3fOq7XP
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