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How to print a one-month calendar of user choice using for loop in C?
The logic to print a one-month calendar is as follows −
for(i=1;i<first;i++) printf(" "); for(i=1;i<=noofdays;i++){ printf("%3d",i); if((first+i-1)%7==0) printf("
"); }
Example
Following example accepts number of days and first day in a month from the user and prints the calendar of a month accordingly −
#include<stdio.h> int main(){ int i,noofdays; int first; printf("enter no of days in a month:
"); scanf("%d",&noofdays); printf("enter first day in a month:
"); scanf("%d",&first); for(i=1;i<first;i++) printf(" "); for(i=1;i<=noofdays;i++){ printf("%3d",i); if((first+i-1)%7==0) printf("
"); } return 0; }
Output
enter no of days in a month: 30 enter first day in a month: 4 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
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