View Compilation Error

0_0_19380919_9122.cpp: In function 'int main()':
0_0_19380919_9122.cpp:23:9: error: expected ';' before 'for'
         for(int i=1;i<n;i++){
         ^
0_0_19380919_9122.cpp:23:21: error: 'i' was not declared in this scope
         for(int i=1;i<n;i++){
                     ^