View Compilation Error

0_0_18473363_16411.cpp: In function 'int main()':
0_0_18473363_16411.cpp:16:1: error: expected ')' before 'flag'
 flag=1;
 ^
0_0_18473363_16411.cpp:37:1: error: expected '}' at end of input
 }
 ^
0_0_18473363_16411.cpp:37:1: error: expected '}' at end of input
0_0_18473363_16411.cpp:37:1: error: expected '}' at end of input