指针练习N个人报数，每报到3的人出局

#include<stdio.h>
#include<math.h>
void Round(int *arr,int n);
void SearchLast(int *arr,int n);
int main(void){
   int arr[4];
  Round(arr,4);
  SearchLast(arr,4);

}
void Round(int *arr,int n){
    int flag=n;int i=0;
    for(i=0;i<n;i++)//Initialize
        *(arr+i)=i+1;

    int count=0;
        i=0;
    int round=0;
    while(flag>1){
    /*
            round++;
        printf("round %d:",round);
    for(int k=0;k<n;k++){
        printf(" %d",arr[k]);
    }
    printf("\n");
    */
     while(i<=n){
        if(i==n){i=0;}
        if(arr[i]==i+1&&count<3){
            count++;
            if(count==3){
                count=0;arr[i]=0;flag--;
        }
            i++;
            break;
        }

        i++;
     }

    }

}

void SearchLast(int *arr,int n){

    for(int i=0;i<n;i++)
        if(*(arr+i)==i+1)
        printf("the last is %d.\n",i);
}