Q5Exercicios1

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

int testa_PA(int n, int* v);

int main(void){
    int i,n,r;
    int *v;
    scanf("%d",&n);
    v = (int *) malloc(n*sizeof(int));
    for(i=0; i<n; i++){
        scanf("%d",&v[i]);
    }
    r = testa_PA(n,v);
    printf("A razão da PA formada pelo vetor e de: %d\n",r);
    free(v);
    return 0;
}

int testa_PA(int n, int* v){
    int razao,crit,i;
    crit = 1;
    razao = v[1] - v[0];
    for(i=1;i<n-1;i++){
        if(v[i+1] - v[i] != razao){
            crit = 0;
            return 0;
        }
    }
    return razao;
}