0
このコードをコンパイルするとエラーが発生します。 Zは、最低数のコインを使用することを目指して変更するために必要なコインの最終数です。私はint Z = 0を最上部の近くに定義しました。私はint zをもう一度追加して、print文でタイプをfに変更しようとしましたが、運が悪いです。CS50 PSET1 Greedy - 割り当てエラーとモジュロ（C）を使用
error: format specifies type 'int' but the argument has type '<dependent type>' [-Werror,-Wformat]
greedy.c:77:16: error: use of undeclared identifier 'z'
printf("%i\n", z);
はここに私のコードです：
はここでエラーです。私は初心者ですので、どんな提案や修正も歓迎されます。
#include <stdio.h>
#include <cs50.h>
#include <math.h>
int main(void)
{
//prompt user for amount of change owed
float f;
int num; //amount of change
do
{
printf("O hai! How much change is owed?:\n");
f = get_float();
}
while (f < 0); //verify input is positive
num = round(f * 100); //rounds float
//commence making change
do{
int c, e, i, j;
int z = 0; //z = coins
if (num % 25 == 0) // verifies that num is divisible by 25 so only 25c coins necessary
{
z = (num/25) + z; // updates final number of 25c coins
}
else if (num % 25 > 0)
{
i = num/25;
j = num % 25;
}
else if ((num/25 < 0) || (num >=10 && num < 25)) //this means that f is less than 25 cents so has to be divided by 10 cent coins
{
num = c;
c = j + c; //add remainder of num to the number to start with
}
if (c % 10 == 0) // c is less than 25c but divisible by 10c pieces
{
z = (c/10) + z; //d is the final number of 10c coins
}
else if (c /10 < 1) //this means it's less than 10c
{
c = e; // Then c must be less than 10c
}
else if (e % 5 == 0) // divisible by 5c pieces
{
z = (e/5) + z; // g is the number of 5 cent pieces
}
else if (e % 5 < 0)
{
z = (e/1) + z; //h is the number of pennies
}
}
while (num > 0); //num is rounded float
printf("%i\n", z);
}