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

int main(){     
    int N, valores[10000], i, j, pontuacao=0;
    scanf("%d", &N);
    for (i=0; i<N; i++){
        scanf("%d", &valores[i]);
    }

    for(i=0; i<N; i++){
        for(j=i+1; j<N; j++){
            if (valores[i] == valores[j])
                pontuacao++;
        }
    }
    printf("%d", pontuacao);

    return 0;
}

It’s supposed to be returning the number of points in a sequence of consecutive numbers, example:

• input: 11 (N) 30 30 30 40 40 40 40 40 30 30 30
• output: 25 (supposed to be 5)

The strange thing is that it works for other sequences.