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- #include<stdio.h>
- #include<math.h>
- int main()
- {
- float t, a, b, r, x;
- float s, l;
- scanf("%f", &t);
- while(t--)
- {
- scanf("%f %f %f", &a, &b, &r);
- x = sqrt((0-a)*(0-a)+(0-b)*(0-b));
- s = r - x;
- l = r + x;
- printf("%.2f %.2f", s, l);
- printf("\n");
- }
- return 0;
- }
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