C Programming – HackerRank Solution | 2D ARRAYS- Election of Candidates |

(HackerRank) Write a Modular C Programming code to solve 2D ARRAYS- Election of Candidates, An election is contested by 5 candidates. The candidates are numbered 1 to 5

An election is contested by 5 candidates. The candidates are numbered 1 to 5 and the voting is done by marking the candidates number on the ballot paper. Apply Problem solving framework and Write a modular C program to read the ballots and count the vote cast for each candidate.

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Input Format

First line indicates number of Candidates.

Second line indicates number of voters.

Further lines indicate matrix of votes casted by voters.

Constraints

Vote can be either 0 or 1 by a voter.

1 indicates a voter casted a vote to one candidate only. For other candidates vote becomes 0.

Output Format

Display candidate wise vote count.

Sample Input 0

5 4
1 1 0 0
0 0 0 0
0 0 1 0
0 0 0 0
0 0 0 1

Sample Output 0

Candidate 1: 2
Candidate 2: 0
Candidate 3: 1
Candidate 4: 0
Candidate 5: 1

Sample Input 1

2 5
0 1 2 3 4
1 2 3 4 0

Sample Output 1

Invalid votes

Sample Input 2

0 -5

Sample Output 2

Invalid input

Refer : C Programming HackerRank all solutions for Loops | Arrays | strings | Data Structures | Linked lists | Stacks | Queues | Binary Trees

 

CODE:

#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#include<math.h>

int main() {
    int voters,candidates,i,j;
    scanf("%d",&candidates);
    scanf("%d",&voters);
    if(candidates>0 && voters>0)
    {
    int vote[candidates][voters];
    int vote_sum[candidates];
    for(i=0;i<candidates;i++)
    {
        vote_sum[i]=0;
        for(j=0;j<voters;j++)
        {
            scanf("%d",&vote[i][j]);
            if(vote[i][j]!=0 && vote[i][j]!=1)
            {
                printf("Invalid votes");
                exit(0);
            }
            vote_sum[i]+=vote[i][j];
        }
    }
    for(i=0;i<candidates;i++)
        printf("Candidate %d: %d\n",i+1,vote_sum[i]);
}
    else{
        printf("Invalid input");
    }
    return 0;
}

OUTPUT

Congratulations, you passed the sample test case.

Click the Submit Code button to run your code against all the test cases.

Input (stdin)

5 4
1 1 0 0
0 0 0 0
0 0 1 0
0 0 0 0
0 0 0 1
Your Output (stdout)

Candidate 1: 2
Candidate 2: 0
Candidate 3: 1
Candidate 4: 0
Candidate 5: 1
Expected Output

Candidate 1: 2
Candidate 2: 0
Candidate 3: 1
Candidate 4: 0
Candidate 5: 1

 

Please find some more codes of Loops, Condition Statements, 1D Arrays, 2D Arrays, Strings, Pointers, Data Structures, Files, Linked lists, Stacks, Queues, Binary Trees, MISC, Solved model question papers & Hacker Rank all solutions on the below page:

Top 100+ C Programming codes – KLE Technological University

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