Question

c语言求并集和交集的关键代码，谢谢

如图三所示

Answer 1

参考代码如下：
#include<stdio.h>
#define N 20
int A[N]={0};
int B[N]={0};
int C[N]={0};
int main()
{
int a[N]={4,6,1,11,3},na=5;
int b[N]={6,7,4,1,9,12,10,15},nb=8;
int i,j,n;
//初始化
printf("A=");
for(i=0;i<na;++i)
A[a[i]]=1;
for(i=0;i<nb;++i)
B[b[i]]=1;
for(i=0;i<N;++i)
printf("%d",A[i]);
printf("\n");
printf("B=");
for(i=0;i<N;++i)
printf("%d",B[i]);
printf("\n");
//求交集
printf("A与B的交集：\n");
for(i=0;i<N;++i)
C[i]=A[i]&&B[i];
for(i=0;i<N;++i)
if(C[i])printf("%d ",i);
printf("\n");
//求并集
printf("A与B的并集：\n");
for(i=0;i<N;++i)
C[i]=A[i]||B[i];
for(i=0;i<N;++i)
if(C[i])printf("%d ",i);

return 0;
}

追答