View Compilation Error

0_0_21146412_8445.cpp:2:5: error: 'dp' does not name a type
     dp[0]=a[0];
     ^
0_0_21146412_8445.cpp:4:5: error: expected unqualified-id before 'for'
     for(int i=1;i<n;i++){
     ^
0_0_21146412_8445.cpp:4:17: error: 'i' does not name a type
     for(int i=1;i<n;i++){
                 ^
0_0_21146412_8445.cpp:4:21: error: 'i' does not name a type
     for(int i=1;i<n;i++){
                     ^
0_0_21146412_8445.cpp:9:5: error: expected unqualified-id before 'return'
     return len;
     ^
0_0_21146412_8445.cpp:10:1: error: expected declaration before '}' token
 }*/
 ^