#include <stdio.h>

int skalarni(int a[], int b[], int n);

int main() {
	int x[]={2,4},  y[]={5,7};
	int sp;
	sp=skalarni(x, y, sizeof(x)/sizeof(x[0]));
	printf("Skalarni proizvod je: %d\n", sp);
	return 0;
}

int skalarni(int a[], int b[], int n) {
	int sp;
	int i;
	for(i=0;i<n;i++) {
		sp=sp+a[i]*b[i];
	}
	return sp;
}