I was given a program in one of my 300 level college classes. It supposed to calculate winners of voters voting on candidates in a specific order. The assignment is to look at the code and try to get it to run faster. As of right now it takes hours to run. If anyone could help out it would be great. Thanks in advance.

Code java:

package edu.iup.cosc310.util; import java.io.FileInputStream; import java.io.FileNotFoundException; import java.util.Scanner; /** * * * Utility class to compute the pairwise winner of elections */ public class PairwiseVote { /** * Get the placement order of a candidate in a rank ordered list of candidates * * @param votersVotes an array of rank ordered candidates. First has the highest * rank. */ public static int getPlacement(int candidate, int[] votersVotes ) { for (int placement = 0; placement < votersVotes.length; placement++) { if (candidate == votersVotes[placement]) { return placement; } } return votersVotes.length + 1; } /** * Get the candidate winner from a set of rank ordered ballots * * @param votes - a two dimensional array, first dimension is the voter, second dimension * is the rank order ballot of candidates for the given voter */ public static int getPairwiseWinner(int[][] votes) { int noVoters = votes.length; if (noVoters == 0) { return -1; } int noCandidates = votes[0].length; if (noCandidates == 0) { return -1; } // Compare every pair of candidates for (int candidate1 = 0; candidate1 < noCandidates; candidate1++) { int noTimesCandidate1Wins = 0; for (int candidate2 = 0; candidate2 < noCandidates; candidate2++) { // Consider a candidate compared with themselves to be a winner if (candidate1 == candidate2) { noTimesCandidate1Wins++; continue; } // Determine count the ballots for each candidate int candidate1votes = 0; int candidate2votes = 0; for (int voter = 0; voter < noVoters; voter++) { int placement1 = getPlacement(candidate1, votes[voter]); int placement2 = getPlacement(candidate2, votes[voter]); if (placement1 < placement2) { candidate1votes++;; } else { candidate2votes++;; } } // determine if candidate1 is the winner if so increment the number of wins if (candidate1votes > candidate2votes) { noTimesCandidate1Wins++; } } // Determine if candidate 1 wins all if (noTimesCandidate1Wins == noCandidates) { return candidate1; } } // No winner return -1; } static int electionNo = 0; /** * Main - reads several test elections using the text file votes.txt. Each election * begins with two number, the number of voters and the number of candidates, all followed * by the ballots of each voter. */ public static void main(String[] args) throws FileNotFoundException { int noVoters; int noCandidates; Scanner in = new Scanner(new FileInputStream("votes.txt")); // read ballots for each election for(;;) { noVoters = in.nextInt(); noCandidates = in.nextInt(); if (noVoters == 0 && noCandidates == 0) { break; } final int[][] votes = new int[noVoters][noCandidates]; // Read the ballots for (int i = 0; i < noVoters; i++) { for (int j = 0; j < noCandidates; j++) { votes[i][j] = in.nextInt(); } } new TimeExec(new Runnable() { public void run() { int winner = getPairwiseWinner(votes); if (winner >= 0) { System.out.printf("Winner of election %d is candidate %d\n", electionNo, winner); } else { System.out.printf("No winner for election %d\n", electionNo); } } }, "Election " + ++electionNo, System.out).start(); } }