View Compilation Error

0_0_30918942_26988.cpp: In function 'int main()':
0_0_30918942_26988.cpp:11:25: error: expected primary-expression before ';' token
         for(i=1;i<=n;i+=;)
                         ^
0_0_30918942_26988.cpp:11:25: error: expected ')' before ';' token
0_0_30918942_26988.cpp:11:26: error: expected primary-expression before ')' token
         for(i=1;i<=n;i+=;)
                          ^