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zhuoxue/代码学习的路途

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guibing.c 1.14 KB
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zhuoxue 提交于 2022-10-09 22:08 +08:00 . WEEK6
#include<stdio.h>
#include<stdlib.h>
void guibingpaixu(int *p, int *q, int left, int right);
void guibingcaozuo(int *p, int *q, int left, int right);
int main(){
int n;
scanf("%d", &n);
int *p = NULL, *q = NULL;
p = (int*)malloc(sizeof(int) * n);
q = (int*)malloc(sizeof(int) * n);
for(int i = 0;i < n;i ++){
scanf("%d", &p[i]);
}
guibingpaixu(p, q, 0, n - 1);
for(int i = 0;i < n;i ++){
printf("%d ", p[i]);
}
printf("\n");
return 0;
}
void guibingpaixu(int *p, int *q, int left, int right){
if(left < right){
int middle = (left + right) / 2;
guibingpaixu(p, q, middle + 1, right);
guibingpaixu(p, q, left, middle);
guibingcaozuo(p, q, left, right);
}
}
void guibingcaozuo(int *p, int *q, int left, int right){
int middle = (left + right) / 2;
int mid = middle + 1;
int i = left;
int j = mid;
int k = left;
while(i < mid && j <= right){
if(p[i] < p[j]){
q[k] = p[i];
i ++;
k ++;
}
else if(p[i] > p[j]){
q[k] = p[j];
j ++;
k ++;
}
}
while(i < mid){
q[k] = p[i];
i ++;
k ++;
}
while(j <= right){
q[k] = p[j];
j ++;
k ++;
}
for(int m = left;m <= right;m ++){
p[m] = q[m];
}
}
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代码学习的路途
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