C :

#include "stdio.h"
#include "math.h"
int main() {
    double rate, capital;
    int year;
    printf("Please enter rate, year, capital:\n");
    scanf("%lf,%d,%lf", &rate, &year, &capital);
    // 复利计算公式 deposit = capital * (1 + rate)^year
    double deposit = capital*pow(1+rate, year);
    printf("deposit=%.3f\n", deposit);
    return 0;
}