84 lines
2.1 KiB
C
84 lines
2.1 KiB
C
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/* Cyclic rotation of array elements - Program to cyclically rotate elements in array. Program should accept a choice that in which direction to rotate - left or right. Suppose array A contains elements {1,2,3,4,5} and if choice is right then o/p should be {5,1,2,3,4} and if choice is left then o/p should be {2,3,4,5,1} */
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#include <stdio.h>
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#include <conio.h>
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void main()
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{
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int i, n, t, x[50] ;
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char choice;
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clrscr() ;
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printf("Enter the number of elements: ") ;
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scanf("%d", &n) ;
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printf("Enter the elements: \n") ;
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for(i=0 ; i<n ; i++)
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scanf("%d", &x[i]) ;
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printf("Do you want to rotate towards right or left ? \n") ;
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printf("Enter R for right and L for left: ") ;
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scanf(" %c", &choice) ;
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printf("Original array is as shown: \n") ;
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for(i=0 ; i<n ; i++)
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printf("%d ", x[i]) ;
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printf("\n") ;
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if(choice=='R'||choice=='r')
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{
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/* Rotating elements to right */
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t=x[n-1] ;
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for(i=n-1 ; i>=1 ; i--)
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x[i]=x[i-1] ;
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x[0]=t ;
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}
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else if(choice=='L'||choice=='l')
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{
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/* Rotating elements to left */
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t=x[0] ;
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for(i=0 ; i<=n-2 ; i++)
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x[i]=x[i+1] ;
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x[n-1]=t ;
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}
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else
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printf("Wrong choice entered. \n") ;
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printf("New array is as shown: \n") ;
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for(i=0 ; i<n ; i++)
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printf("%d ", x[i]) ;
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getch();
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}
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/*
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Output1:
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Enter the number of elements: 4
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Enter the elements:
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5 6 7 8
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Do you want to rotate towards right or left ?
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Enter R for right and L for left: R
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Original array is as shown:
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5 6 7 8
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New array is as shown:
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8 5 6 7
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Output2:
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Enter the number of elements: 4
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Enter the elements:
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5 6 7 8
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Do you want to rotate towards right or left ?
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Enter R for right and L for left: L
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Original array is as shown:
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5 6 7 8
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New array is as shown:
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6 7 8 5
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Output3:
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Enter the number of elements: 3
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Enter the elements:
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1 2 4
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Do you want to rotate towards right or left ?
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Enter R for right and L for left: K
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Original array is as shown:
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1 2 4
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Wrong choice entered.
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New array is as shown:
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1 2 4
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*/
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