#include <stdio.h>
#include <stdlib.h>
int main(void) {
double* a;
a
= (double*)malloc(sizeof(double)*4); // ここまでで、int型の配列(長さ4)ができた。
a[0]=1/10;
a[1]=1;
a[2]=2;
a[3]=3;
return 0;
}
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