C ++无法找出数组和函数 [英] C++ Can't figure out arrays and functions

问题描述

可能重复：

停留在C ++函数和数组上

这个问题：我不能让它运行，我不得不让数组函数返回到主。感谢任何帮助。

需要使用二维数组来存储一周七天中每只猴子吃3磅猴的食物。 >

创建一个函数来获取每只猴子每周的每天吃的磅数。
创建第二个函数来确定通过数组计算所有的货币的总和，然后是一天的平均吃。

创建第三个函数，以确定哪只猴子吃了最少量的食物和什么日子。还输出当天猴子吃的量。
创建第四个函数来确定哪一只猴子在一天内吃了最多的食物。输出猴子数，吃掉的磅数和工作日。

  #include< iostream> 
 using namespace std; 
 
 const int monkeys = 3; 
 const int weekdays = 7; 
 double monkeyWeek [monkeys] [weekdays]; 
 double maximum; 
 double最少; 
 double average; 
 int index; 
 int dayCount; 
 double amount; 
 
 double amountEaten（double [] [weekdays]，int）; 
 double mostEaten（double [] [weekdays]，int）; 
 double leastEaten（double [] [weekdays]，int）; 
 
 int main（）{
 double mostBananas（double [] [weekdays]，int）; 
 double leastBananas（double [] [weekdays]，int）; 
 // double bananaAverage（double [[[weekdays]，int）; 
} 
 
 double amountEaten（double array [] [weekdays]，int）{
 cout< 请输入每只猴子每天食用的食物量。 << endl; 
 double amount = array [0] [0]; 
 for（index = 0; index< monkeys; index ++）
 {
 for（dayCount = 0; dayCount< weekdays; dayCount ++）
 {
 cout ;& endl<< 请输入猴子吃的磅数
<< （index +1）
<< endl<< for day<< （dayCount +1）< ：; 
 cin>> monkeyWeek [monkeys] [weekdays]; 
 if（monkeyWeek [monkeys] [weekdays]< 1）
 cout< endl<<必须馈送正量< endl; 
} 
} 
} 
 
 double mostEaten（double array [] [weekdays]，int size）
 {
 double greater = array [0] [0]; 
 for（int count = 0; count< size; count ++）
 {
 for（int col = 0; col< count; col ++）
 {
 if（array [count] [weekdays]> maximum）
 highest = array [count] [weekdays]; 
} 
} 
 return maximum; 
} 
 
 double leastEaten（double array [] [weekdays]，int size）
 {
 double最少= array [0] [0] 
 
 for（int count = 0; count  {
 for（int col = 0; col< size; col ++）; 
 {
 if（array [count] [weekdays]< minimum）
 least = array [count] [weekdays]; 
} 
} 
 return least; 
} 
  

解决方案

，你还没有打电话到任何功能。使用下面的示例并相应地更改您的程序。

示例：

  int main（）
 {
 int i_array = {0,1,2,3,4,5}; 
 function（i_array）; //调用函数
 printf（％d，i_array [0]）; //将打印100不是0 
} 
 
 void function（int [] i_array）
 {
 i_array [0] = 100; 
} 
  

Possible Duplicate:
Stuck on C++ functions and arrays

Stuck on this problem: I can't get it to run and i am stuck on getting the array functions to return to main. Thanks for any help.

Requires the utilization of a 2 dimensional array to store the pounds of food eaten by 3 monkeys each of the seven days of the week.

Create a function to obtain the pounds eaten for each monkey, each day of the week. Create a second function to determine pass through the array to calculate the total all of the moneys ate, and then the average eaten on one day.

Create a third function to determine which monkey ate the least amount of food and on what day. Also output the amount the monkey ate on that day. Create a fourth function to determine which monkey ate the most amount of food on a single day. Output the monkey number, the pounds eaten, and the weekday.

#include <iostream>
using namespace std;

const int monkeys = 3;
const int weekdays = 7;
double monkeyWeek[monkeys][weekdays];
double largest;
double least;
double average;
int index;
int dayCount;
double amount;

double amountEaten(double[] [weekdays], int);
double mostEaten (double[] [weekdays],int);
double leastEaten (double[][weekdays], int);

int main(){
    double mostBananas (double[] [weekdays],int);
    double leastBananas (double[][weekdays],int);
    //double bananaAverage (double[][weekdays], int);
}

double amountEaten(double array[] [weekdays], int) {
    cout << "Please enter the amount of food eaten per monkey per day." << endl;
    double amount = array[0][0];
    for (index = 0; index < monkeys; index++)
    {
        for (dayCount = 0; dayCount < weekdays; dayCount++)
        {
            cout << endl << "Please enter the amount of pounds eaten by monkey" 
                         << (index +1)
                         << endl << "for day " << (dayCount +1) << ": ";
            cin >> monkeyWeek[monkeys] [weekdays] ;
            if (monkeyWeek[monkeys] [weekdays] < 1)
                cout << endl <<"Must feed positive amount" << endl;
        }
    }
}

double mostEaten( double array[] [weekdays], int size)
{
    double largest = array[0][0];
    for (int count = 0; count < size; count++)
    {
        for (int col = 0; col < count; col++)
        {
            if (array[count][weekdays] > largest)
            largest = array[count][weekdays];
        }
    }
    return largest;
}

double leastEaten(double array[] [weekdays], int size)
{
    double least = array[0][0];

    for (int count = 0; count < size; count++)
    {
        for (int col = 0; col < size; col++);
        {
            if (array[count][weekdays] < least)
            least = array[count][weekdays];
        }
    }
    return least;
}

解决方案

You are just declaring the functions, you haven't made a call to any functions at all. Use the sample below and change your program accordingly.

Example:

int main()
{
    int i_array={0,1,2,3,4,5};
    function(i_array);           //  Call a function
    printf("%d",i_array[0]);    // will print 100 not 0
}

void function(int []  i_array)
{
    i_array[0]=100;
}

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