找出0℃一下的天数占总天数的百分比

#include<iostream>
#include<string.h> 
#include<limits.h>
#include<float.h>
#include<stdio.h>
#pragma warning(disable  : 4996)

using namespace std;

int main() {

    const int FREEZING = 0;
    float temperature;
    int cold_days=0;
    int all_days=0;
    
    printf("Enter the list of daily low temperaturws.\n");
    printf("Use Celsius,and enter q to quit.\n");
    while (scanf("%f",&temperature)==1)
    {
        all_days++;
        if (temperature < FREEZING)
        {
            cold_days++;
        }
    }

    if (all_days!=0)
    {
        printf("%d days total:%.lf%% were below freezing.\n",all_days,100.0*(float)cold_days/all_days);

    }
    if (all_days==0)
    {
        printf("No data entered.\n");
    }

    return 0;

}