View Compilation Error

0_0_17904067_16658.cpp: In function 'int main()':
0_0_17904067_16658.cpp:58:19: error: 't1' was not declared in this scope
         for(int i=t1;)
                   ^
0_0_17904067_16658.cpp:58:22: error: expected primary-expression before ')' token
         for(int i=t1;)
                      ^
0_0_17904067_16658.cpp:58:22: error: expected ';' before ')' token