35 lines
582 B
C
35 lines
582 B
C
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#include <stdio.h>
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#include "collatz.h"
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/* Compute the next step in the collatz sequence */
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int collatz_next(int n){
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if(n < 1){
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return -1;
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}
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else if(n==1){
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return 1;
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}
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else if(n % 2 == 0){
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return n / 2;
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}
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else{
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return n*3 + 1;
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}
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}
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// Count how many steps are in the collatz sequence
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int collatz_steps(int n, int print_output){
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int steps = 0;
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if(print_output){
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printf("Step %d: %d\n",steps,n);
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}
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while(n > 1){
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n = collatz_next(n);
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steps++;
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if(print_output){
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printf("Step %d: %d\n",steps,n);
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}
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}
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return steps;
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}
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