#include <stdio.h>

void swap(int *x, int *y) {
    int w;
     w = *x;
    *x = *y;
    *y = w;
}

int main() {
    int data1[5] = {1, 2, 3, 4, 5};
    int data2[5] = {6, 7, 8, 9, 10};

    printf("入れ替え前:\n");
    printf("data1: ");
    for (int i = 0; i < 5; i++) {
        printf("%d ", data1[i]);
    }
    printf("data2: ");
    for (int i = 0; i < 5; i++) {
        printf("%d ", data2[i]);
    }
    printf("\n");

    for (int i = 0; i < 5; i++) {
        swap(&data1[i], &data2[i]);
    }

    printf("入れ替え後:\n");
    printf("data1: ");
    for (int i = 0; i < 5; i++) {
        printf("%d ", data1[i]);
    }
    printf("data2: ");
    for (int i = 0; i < 5; i++) {
        printf("%d ", data2[i]);
    }
    printf("\n");

    return 0;
}