c语言存款利率计算器

以下是一个简单的C语言存款利率计算器的例子：

#include <stdio.h>
#include <math.h>

int main() {
    double principal, rate, interest;
    int years, compound;    char choice;

    printf("Enter the principal amount: ");
    scanf("%lf", &principal);

    printf("Enter the annual interest rate: ");
    scanf("%lf", &rate);

    printf("Enter the number of years: ");
    scanf("%d", &years);

    printf("Do you want to compound interest (Y/N)? ");
    scanf(" %c", &choice);

    if (choice == 'Y' || choice == 'y') {
        printf("Enter the number of times interest is compounded per year: ");
        scanf("%d", &compound);
        interest = principal * pow(1 + rate / compound, compound * years) - principal;    } else {
        interest = principal * rate * years;
    }

    printf("Total amount at maturity: %.4f\n", principal + interest);

    return 0;
}