c++ - 数组函数似乎没有找到最高值

Question

我有一段代码应该从一组数组中返回最大的整数，每个数组包含三个整数。目前我的代码不工作。有人可以帮我找到我的错误吗？

下面是我的代码:

#include <iostream>
using namespace std;

void HighestScore(int[], int[], int[]);

int main() {
    const int SIZE = 3;
    int Stu1[SIZE] = {70, 80, 90},
        Stu2[SIZE] = {71, 81, 91},
        Stu3[SIZE] = {72, 82, 92},
        Stu4[SIZE] = {73, 83, 93},
        Stu5[SIZE] = {74, 84, 94};


    HighestScore(Stu1,Stu2,Stu3);


    return 0;
}



void HighestScore(int St1[], int St2[], int St3[])
{
    const int SIZE =3;
    int count;

    int high1 = St1[0];
    int high2 = St2[0];
    int high3 = St3[0];
    int highest =0;

    for (count=1;count<SIZE;count++)
    {
        if(St1[count] > high1)
            {high1 = St1[count];}
        if(St2[count] >high2)
            {high2 = St2[count];}
        if(St3[count] >high3)
            {high3 = St3[count];}

    }

    if(high1>high2)
        {highest=high1;}
    else if (high1>high3)
        {highest=high1;}
    else if (high2>high1)
        {highest=high2;}
    else if (high2>high3)
        {highest=high2;}
    else if (high3>high1)
        {highest=high3;}
    else if (high3>high2)
        {highest=high3;}
    else
        {highest=-1;}

    cout << highest;
    return;
}

Answer 1

由于数组大小相同，因此您无需分别处理每个最大值。

让 highest 存储当前的最高值并被下一个最高值覆盖。

为什么不只是:

 int HighestScore(int St1[], int St2[], int St3[])
{
const int SIZE =3;
int count;
//make sure you have #include <limits.h> in the beginning
int highest = INT_MIN; //---lowest value of an integer in C;


for (count=0;count<SIZE;count++)
{
    if(St1[count] > highest)
        highest = St1[count];
    if(St2[count] > highest) 
        highest = St2[count];
    if(St3[count] > highest) 
        highest = St3[count];
}
cout << highest;
return highest;
}

对于最高的初始值，取整数中可能的最低值，这样可以保证覆盖。

整数的最小可能值也可以作为 limits.h 中的 INT_MIN。