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- #include<stdio.h>
- float dotProduct(int n, float v[n], float c[n])
- {
- int i;
- float P=0;
- for(i=0;i<n;i++)
- P=P+v[i]*c[i];
- return P;
- }
- int main()
- {
- int n,i;
- scanf("%d", &n);
- float v[n],c[n];
- for(i=0;i<n;i++)
- {
- scanf("%f",&v[i]);
- }
- for(i=0;i<n;i++)
- {
- scanf("%f",&c[i]);
- }
- float P=1;
- P=dotProduct(n,v,c);
- printf("%.3f",P);
- return 0;
- }
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