编程练习 找第二大的数

Code Snippet
  1. #include <iostream>
  2. #include <fstream>
  3.  
  4. using namespace std;
  5.  
  6. int main()
  7. ...{
  8.     ifstream inFile("d:\intArray.txt");
  9.     if(!inFile)
  10.         ...{
  11.             cout<< "File Error"<<endl;
  12.             return -1;
  13.     }
  14.  
  15.     int len;
  16.     inFile >> len;
  17.     int* arrayInt = new int[len];
  18.     for(int i = 0; i < len; i++)
  19.         inFile >> arrayInt[i];
  20.     int indexI = 0, indexII;
  21.  
  22.     if(arrayInt[0] < arrayInt[1])
  23.         indexI = 0, indexII = 1;
  24.     else
  25.         indexI = 1, indexII = 0;
  26.  
  27.     for(int i = 1; i < len; i++)
  28.         ...{
  29.             if(arrayInt[i] > arrayInt[indexI])
  30.                 ...{
  31.                     indexII = indexI;
  32.                     indexI = i;
  33.             }
  34.             else if(arrayInt[i] > arrayInt[indexII])
  35.                 ...{
  36.                     indexII = i;
  37.             }
  38.     }
  39.  
  40.     cout<<"The second biggest number is " << arrayInt[indexII]<<endl;
  41.  
  42.     delete[] arrayInt;
  43.     return 0;
  44. }
原文地址:https://www.cnblogs.com/awpatp/p/1597012.html