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我對C++相對來說比較陌生，今年我纔開始學習它。 我無法編寫一個小程序來接收文本文檔並將其存儲在數組中。然後採用該數組並以某種方式隨機化數值。這是一個排班計劃，可以將騎手+馬匹安排在合適的位置。使用一組規則重新排列數組並從函數中返回值
我試圖在這個函數（gen（））中嘗試的是將條目[num]複製到entry2 [num2]。其中num是條目數量，num2是隨機生成的rand（）數字。然後我想讓它檢查新條目是否比舊條目多至少15個位置（在這種情況下，所以馬的騎手可以在他的下一個事件之前休息）
以便您猜測。這個應用程序不工作，即時猜測有一個更簡單的方法？ 我怎樣才能發送變量到這個數組，我怎樣才能得到這個函數返回數組回到我的主..即時通過指針猜測？
我附上了下面的整個代碼。
/* ________________________________________________________________________________
* | TITLE: main.cpp |
* | AUTHOR: Samuel Abbott ([email protected]) |
* | PURPOSE: to take camp draft data in, randomise it with certain values, |
* | and output the new roster as a text document |
* | DATE: may 1, 2012 |
* | LAST EDIT: may 3,2012 |
* |______________________________________________________________________________|
*/
#include <iostream>
#include <string>
#include <stdlib.h> //random number
#include <time.h> //random number
#include <fstream> //used for input/output of external files
using namespace std;
/*
* TITLE: gen
* PURPOSE: to randomise the entries , check to see if they are more then 15 units apart, and return a pointer to the randomised array
* string entry[] holds original values
* int num [] holds number of entries
*/
sting gen(string entry[], int num)
{
int count = 0;
string entry2[num]; //randomised array
/* initialize random seed: */
srand(time(NULL));
for (count =0; count < num)
{
num2 = rand() % num; //generate random number
entry[num] = entry2[num2]; //copy number from array to a random position in the next array
/* a series of if checks to make sure the entry is no less then 15 positions from the previous entry */
if (entry2[num2]=entry[num-15])
{
num2 = rand() % num; //generate random number
entry[num] = entry2[num2]; //copy number from array to a random position in the next array
}
else if (entry2[num2]=entry[num-14])
{
num2 = rand() % num; //generate random number
entry[num] = entry2[num2]; //copy number from array to a random position in the next array
}
else if (entry2[num2]=entry[num-13])
{
num2 = rand() % num; //generate random number
entry[num] = entry2[num2]; //copy number from array to a random position in the next array
}
else if (entry2[num2]=entry[num-12])
{
num2 = rand() % num; //generate random number
entry[num] = entry2[num2]; //copy number from array to a random position in the next array
}
else if (entry2[num2]=entry[num-11])
{
num2 = rand() % num; //generate random number
entry[num] = entry2[num2]; //copy number from array to a random position in the next array
}
else if (entry2[num2]=entry[num-10])
{
num2 = rand() % num; //generate random number
entry[num] = entry2[num2]; //copy number from array to a random position in the next array
}
else if (entry2[num2]=entry[num-9])
{
num2 = rand() % num; //generate random number
entry[num] = entry2[num2]; //copy number from array to a random position in the next array
}
else if (entry2[num2]=entry[num-8])
{
num2 = rand() % num; //generate random number
entry[num] = entry2[num2]; //copy number from array to a random position in the next array
}
else if (entry2[num2]=entry[num-7])
{
num2 = rand() % num; //generate random number
entry[num] = entry2[num2]; //copy number from array to a random position in the next array
}
else if (entry2[num2]=entry[num-6])
{
num2 = rand() % num; //generate random number
entry[num] = entry2[num2]; //copy number from array to a random position in the next array
}
else if (entry2[num2]=entry[num-5])
{
num2 = rand() % num; //generate random number
entry[num] = entry2[num2]; //copy number from array to a random position in the next array
}
else if (entry2[num2]=entry[num-4])
{
num2 = rand() % num; //generate random number
entry[num] = entry2[num2]; //copy number from array to a random position in the next array
}
else if (entry2[num2]=entry[num-3])
{
num2 = rand() % num; //generate random number
entry[num] = entry2[num2]; //copy number from array to a random position in the next array
}
else if (entry2[num2]=entry[num-2])
{
num2 = rand() % num; //generate random number
entry[num] = entry2[num2]; //copy number from array to a random position in the next array
}
else if (entry2[num2]=entry[num-1])
{
num2 = rand() % num; //generate random number
entry[num] = entry2[num2]; //copy number from array to a random position in the next array
}
else
{
entry[num] = entry2[num2];
}
}
string pointer* = entry2[]
return pointer
}
/*
* Title : Loading
* Purpose: This function generates a loading animation. in other words. just a fancy graphic.
* HAS NO LOADING PURPOSE
*/
void loading()
{
/* Declare loading variable, this variable is just the screen printout */
string loading = "...";
int time = 0;
int loadtime = 10;
/* print out loading animation */
while (time != loadtime)
{
cout << loading;
time++;
}
}
void loading();
/*
* Title: Main
* Purpose: this is the main function for the randomisation program
*/
int main()
{
//declare all variables
string fname = "";
int count;
string line;
ifstream inputfile;
char c;
int num=0;
/* introduction */
cout << "Roster Randomisation Generator" << endl;
/* Get input for roster name */
cout << "Enter a name for the roster, such as 13022012coolah:"<<endl;
cin>> fname;
/* Begin generating roster */
cout << "Roster Generation in progress." << endl;
loading();
/* get amount of lines in text file .. used to determine how many entries there are to avoid printing blank spaces*/
inputfile.open("output.txt");
while (inputfile.good())
{
c = inputfile.get();
if (c=='\n')
{
num++;
}
}
inputfile.close();
cout<<"Number of Entries counted is: "<<num<<endl;
string entry[num];
cout << "Grabbing entries from entry file..."<<endl;
/* open text file*/
inputfile.open("output.txt");
/* read all data into the array entry[] */
for (count = 0; count < num; count++)
{
getline(inputfile,line); //Gets a single line from example.txt
entry[count]=line;
// inputfile >> entry[count];
}
inputfile.close();
cout <<"Found the following entries: " <<endl;
/* output captured entries*/
for (count =0; count < num; count++)
{
cout <<entry[count] <<endl;
}
return 0;
}
請將您的以下問題簡化爲核心問題。 –