View Compilation Error

0_0_32290245_29679.cpp:37:1: error: expected unqualified-id before 'for'
 for(int i = n; i > 1; -- i){
 ^
0_0_32290245_29679.cpp:37:16: error: 'i' does not name a type
 for(int i = n; i > 1; -- i){
                ^
0_0_32290245_29679.cpp:37:23: error: expected unqualified-id before '--' token
 for(int i = n; i > 1; -- i){
                       ^
0_0_32290245_29679.cpp:40:1: error: expected unqualified-id before 'for'
 for(int i = 1; i <= n; i ++){
 ^
0_0_32290245_29679.cpp:40:16: error: 'i' does not name a type
 for(int i = 1; i <= n; i ++){
                ^
0_0_32290245_29679.cpp:40:24: error: 'i' does not name a type
 for(int i = 1; i <= n; i ++){
                        ^