编程练习- 找第二大的数

#include <iostream>

#include <fstream>

 

using namespace std;

 

int main()

...{

    ifstream inFile("d:\intArray.txt");

    if(!inFile)

        ...{

            cout<< "File Error"<<endl;

            return -1;

    }

 

    int len;

    inFile >> len;

    int* arrayInt = new int[len];

    for(int i = 0; i < len; i++)

        inFile >> arrayInt[i];

    int indexI = 0, indexII;

 

    if(arrayInt[0] < arrayInt[1])

        indexI = 0, indexII = 1;

    else

        indexI = 1, indexII = 0;

 

    for(int i = 1; i < len; i++)

        ...{

            if(arrayInt[i] > arrayInt[indexI])

                ...{

                    indexII = indexI;

                    indexI = i;

            }

            else if(arrayInt[i] > arrayInt[indexII])

                ...{

                    indexII = i;

            }

    }

 

    cout<<"The second biggest number is " << arrayInt[indexII]<<endl;

 

    delete[] arrayInt;

    return 0;

}