View Compilation Error

0_0_25822899_17426.cpp: In function 'int main()':
0_0_25822899_17426.cpp:40:10: error: expected '}' at end of input
     num++;//cout<<0.5*sg*t2*t2*i*i<<" "
          ^
0_0_25822899_17426.cpp:40:10: error: expected '}' at end of input
0_0_25822899_17426.cpp:40:10: error: expected '}' at end of input
0_0_25822899_17426.cpp:40:10: error: expected '}' at end of input