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  1. #include <stdio.h>
  2. #include<math.h>
  3.  
  4. int main(void) {
  5. 	int n;
  6. 	scanf("%d",&n);
  7. 	float x[100],y[100];
  8. 	float o=0,s=0,do_o=0,do_s=0;
  9.  
  10.     for(int i=0; i<n; i++)
  11.     {
  12.     	scanf("%f%f",&x[i],&y[i]);
  13.  
  14.         do_s = sqrt(pow(x[i],2)+pow(y[i],2));
  15.         s = s + do_s;
  16.  
  17.     }
  18.  
  19.  
  20. 	for(int j=1; j<=n; j++)
  21. 	{
  22. 		do_o = sqrt(pow(x[j] - x[j-1],2) + pow(y[j]-y[j-1],2));
  23. 		o = o + do_o;
  24. 		x[n] = x[0];
  25. 		y[n] = y[0];
  26. 	}
  27. 	printf("%.3f %.3f",o,s);
  28.  
  29.  
  30.  
  31.  
  32.  
  33.  
  34.  
  35. 	return 0;
  36. }
  37.  
Success #stdin #stdout 0s 9424KB
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4.000 3.414
https://ideone.com/6b8nwt
language:
C (gcc 8.3)
created:
5 years ago
visibility:
public

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