分治的思想

#include <stdio.h>int max(int a[],int l,int r);int main(){    int s[11]={4,5,12,43,22,44,77,123,423,33,22};    int b = max(s,0,10);    printf("%d",b);    return 0;}int max(int a[],int l,int r){    int u,v;    int m = (l + r) / 2;    if(l == r) return a[l];    u = max (a, l ,m);    v = max (a, m+1, r);    if(u > v) return u; else return v;}