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/*
Program# 19
date : 25-12-2008
Single,two,three or four digit number
*/
#include <stdio.h>
main(){
int n;
printf("\nEnter a positive number :");
scanf("%d",&n);
if(n>=0 && n<=9)
printf("Single digit number");
else if(n>=10 && n<=99)
printf("\n %d: Two digit number",n);
else if(n>=100 && n<=999)
printf("\n %d: Three digit number",n);
else if(n>=1000 && n<=9999)
printf("\n %d: Four digit number",n);
else
printf("\n %d: Greater than four digits",n);
}
output:Enter a positive number : 123 123: Three digit number |
Things to note: else if ladder
The last else will execute only if all the conditions are false.The below given both the forms of if are equal
if(condition) if(condition)
do this; do this;
else else if(condition)
{ do this;
if(condition)
do this;
}