#include <stdio.h>
 
void cat_data(int *data1, const int *data2, int len2) {
    for(int i=0;i<len2;i++){
        data1[7+i]=data2[i];
    }
}
 
int main(void) {
    int data1[12] = {1,3,5,7,9,11,13};  // 7個
    int data2[5]  = {2,4,6,8,10};         // 5個
 
    int len2=sizeof(data2)/sizeof(data2[0]);
 
    cat_data(data1,data2,len2);
 
    // 連結後の data1 を出力
    for (int i=0;i<7+len2;i++){
        printf("%d ",data1[i]);
    }
    printf("\n");
 
    return 0;
}
 

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