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Hi, someone who can give me a hand, just don't know why it always show runtime error with my c program. Here is my codes:

#include <stdio.h>

int Q(int n)
{
int cyclelength=1;

while(n>1)
{
if((n%2)==1) {
n=3*n+1;
}
else n = n/2;
cyclelength++;
}
return cyclelength;
}

int main()
{
int ...