View Compilation Error

0_0_20912814_27265.cpp: In function 'int main()':
0_0_20912814_27265.cpp:49:17: error: expected ';' before 'for'
                 for(int i=l; i<r; i++)
                 ^
0_0_20912814_27265.cpp:49:30: error: 'i' was not declared in this scope
                 for(int i=l; i<r; i++)
                              ^