View Compilation Error

0_0_21290798_27941.cpp: In function 'int main()':
0_0_21290798_27941.cpp:34:21: error: expected ';' before 'end'
                     end=i;
                     ^
0_0_21290798_27941.cpp:43:20: error: 'strat' was not declared in this scope
                    strat=i+1;
                    ^