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TWEET # Problem 1 (TriAngles) a guest Nov 17th, 2019 142 Never
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1. Three natural numbers А, B and C are entered from the SI.
2.
3. Write a program that will check if the three entered numbers can represent the values of the angles (in degrees) of a triangle. If the values can represent angles of a triangle print YES in the first line of the standard output followed by type of the triangle (RIGHT, ACUTE or OBTUSE) in the next line. If triangle is not possible with the tree given angles print NO in a single line.
4.
5. Examples:
6.
7. Example 1:
8.
9. 60 40 80
10.
11. YES
12.
13. ACUTE
14.
15. Example 2:
16.
17. 100 50 30
18.
19. YES
20.
21. OBTUSE
22.
23. Example 3:
24.
25. 100 50 50
26.
27. NO
28. __________________________________________________________
29.
30. #include <stdio.h>
31. #include <stdlib.h>
32.
33. int main()
34. {
35.     int a, b, c;
36.     scanf("%d %d %d", &a, &b, &c);
37.
38.     if(a+b+c == 180){
39.         printf("YES\n");
40.         if((a==90) || (b==90) || (c==90)){
41.             printf("RIGHT\n");
42.         }else if((a<90)&&(b<90) && (c<90)){
43.             printf("ACUTE\n");
44.         }else if((a>90) || (b>90) || (c>90)){
45.             printf("OBTUSE\n");
46.         }
47.     }else
48.         printf("NO\n");
49.
50.     return 0;
51. }
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