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查找美分对应的英文单词

1、用两个数组

#include<stdio.h>

int amount[] = { 1,5,10,25,50 };
char* name[] = { "penny","mickel","dimme","quarter","half-dollar" };

int search(int key, int a[], int len);
int main(void)
{
    int k = 10;        //需要找的数
    int r = search(k, amount, sizeof(amount) / sizeof(amount[0]));

    if (r != -1)
    {
        printf("%s
", name[r]);
    }
    return 0;
}

int search(int key, int a[], int len)
{
    int ret = -1;
    for (int i = 0; i < len; i++)
    {
        if (key == a[i])
        {
            ret = i;
            break;
        }
    }
    return ret;
}

2、结构体

#include<stdio.h>

struct
{
    int amount;
    char* name;
} coins[] = {
                {1,"penny"},
                {5,"nikel"},
                {10,"dime"},
                {25,"quarter"},
                {50,"half-dollar"}
};

int main(void)
{
    int k = 10;        //需要找的数
    for (int i = 0; i < sizeof(coins) / sizeof(coins[0]); i++)
    {
        if (k == coins[i].amount)
        {
            printf("%s
", coins[i].name);
        }
    }
　　　　return 0;
}