#include <stdio.h>
void cat_data(int*data1,const int*data2,int len2){
int i;
for(i=2;i<len2;i++){
data1[i]=data2[i-2];
}
}
int main(void) {
int n1[7]={1,2};
int n2[5]={3,4,5,6,7};
int l=sizeof(n1)/sizeof(n1[0]);
cat_data(n1,n2,l);
int i;
for(i=0;i<l;i++){
}
return 0;
}
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