39 lines
903 B
C
39 lines
903 B
C
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/* Ackerman Problem - Refer program for Question
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There is a recursive function called the ackermans function which is popular with the lecturers of computer science and can be defined like this
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If m and n are integers greater than or equal to zero then
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ack(m,n)=n+1, if m=0
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ack(m,n)=ack(m-1,1),if(n=0) and m>0
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ack(m,n)=ack(m-1,ack(m,n-1)),otherwise
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write a recursive function to implement the above mentioned algorithm. */
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#include <stdio.h>
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#include <conio.h>
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int ack(int m, int n)
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{
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if(m==0)
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return (n+1) ;
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else if(n==0 && m>0)
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return ( ack(m-1,1) ) ;
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else
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return ( ack(m-1, ack(m,n-1) ) );
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}
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void main()
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{
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int m, n ;
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clrscr() ;
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printf("Enter two numbers: ") ;
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scanf("%d %d", &m, &n) ;
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printf("Solution is %d", ack(m,n) ) ;
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getch() ;
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}
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/*
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Output:
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Enter two numbers: 2 3
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Solution is 9
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*/
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