#include <stdio.h>

void f(int *g, int a) {//戻り値なし
    *g = a;
}
int add(int g, int a) {//戻り値あり
    return g + a;
}
int main() {
    int k[10];
    f(&k[1], 2);
    printf("%d",k[1]);
    puts(" ");
    k[2] = add(k[1],2);
    printf("%d",k[2]);
    return 0;
}

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