View Compilation Error

0_0_19646823_973.cpp:5:9: error: expected unqualified-id before 'for'
         for (int i = 0; i < n; ++i) {
         ^
0_0_19646823_973.cpp:5:25: error: 'i' does not name a type
         for (int i = 0; i < n; ++i) {
                         ^
0_0_19646823_973.cpp:5:32: error: expected unqualified-id before '++' token
         for (int i = 0; i < n; ++i) {
                                ^