Fasihul Kabir Rafi

http://uva.onlinejudge.org/external/101/10195.html

1. Use Heron's formula to calculate the area of the triangle
2. r = 2A/(a+b+c);
3. Critical test case. Input : 0 0 0, Output : The radius of the round table is: 0.000

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http://uva.onlinejudge.org/external/114/11462.html

1. Use scanf to take input
2. sort using the sort function of #include<algorithm> header file]
3. Use a trick to print the ages bcz after the last element there will be newline rather than blank space

http://uva.onlinejudge.org/external/109/10991.html

1. connect the three center of the circles, then u will have a tringle where a = r1+r2, b=r2+r3, c=r3+r1. Find the area of the triangle using heron's formula
2. use cosine formula to find out the angle between the connecting lines and find out the area which of arc 
3. finialy minus these with the value of the triangle and print the value. 

http://uva.onlinejudge.org/external/103/10347.html


Use the following formulas ::
area = (4*sqrt(o*sqrt( o*(o-m1)*(o-m2)*(o-m3) ) ))/3
o = (m1+m2+m3)/2;

do check for invalid triangle. and printf -1.000 for that.

http://uva.onlinejudge.org/external/107/10783.html

Just run a loop from a to b and add them with another variable s(initial value of s=0). Plz do check for either it is odd number or not.....

http://uva.onlinejudge.org/external/118/11805.html

There are 2 ways to solve the problem.

One
Using for loop upto no of passes while increasing the value of player no.

Two
Do simple calculation using no of passes, no player & starting point.