Code failed to compile

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While the program is running and giving valid ouput for at least some inputs, with Check50, it shows for 🙁 plurality compiles

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code failed to compile

This is the code:

[dm_code_snippet background=”yes” background-mobile=”no” slim=”yes” line-numbers=”yes” bg-color=”#abb8c3″ theme=”dark” language=”clike” wrapped=”yes” height=”” copy-text=”Copy Code” copy-confirmed=”Copied”]

#include <stdio.h>
#include <cs50.h>
#include <string.h>
#define MAX 9

typedef struct
{
int vote;
string name;
}
candidate;
candidate candidates[MAX];

int maxcandidate;
int noofcandidate;


bool vote (string nameentered);
void print_winner(void);

int main (int argc, string argv[])
{
    if(argc < 4)
        {
        printf("less than 4 and so invalid");
        return 0;
        }
    if(argc > 9)
        {
        printf("more than 9 and so invalid");
        return 0;
        }
noofcandidate = argc - 1;

    for (int c = 0; c < noofcandidate; c++)
        {
        candidates[c].name = argv[c+1];
        candidates[c].vote = 0;
        }
int noofvoters = get_int("Number of voters: ");
printf("Number of voters: %i\n", noofvoters);
    for (int t = 0; t < noofvoters; t++)
        {
        string nameentered = get_string("Vote: ");
        if (!vote(nameentered))
            {
            printf("invalid name");
            return 1;
            }
        }
print_winner();
}



bool vote (string nameentered)
{
int z;
    for (z = 0; z < noofcandidate; z++)
        {
        if (strcmp(nameentered, candidates[z].name) == 0)
            {
            candidates[z].vote = candidates[z].vote + 1;
            return true;
            }
        }
return false;
}


void print_winner(void)
{
int maxvote = 0;
    for (int z = 0; z < noofcandidate; z++)
        {
        if (candidates[z].vote > maxvote)
            {
            maxvote = candidates[z].vote;
            }
        }

    for (int z = 0; z < noofcandidate; z++)
        {
            if (maxvote == candidates[z].vote)
                {
                printf ("%s\n", candidates[z].name);
             }
        }
    return;
}

[/dm_code_snippet]  

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