| Hello World | freesolidityeasyapp |
| Value Types | freesolidityeasydata |
| Function | freesolidityeasyfunction |
| State Variables | solidityeasydata |
| Local Variables | solidityeasydata |
| Global Variables | solidityeasydata |
| View and Pure Functions | solidityeasyfunction |
| Counter | solidityeasyapp |
| Default Values | solidityeasydata |
| Constants | solidityeasydata |
| If and Else | solidityeasycontrol flow |
| For and While Loops | solidityeasycontrol flow |
| Error Handling | solidityeasyerror |
| Function Modifier | solidityeasyfunction |
| Constructor | solidityeasyfunction |
| Ownable | solidityeasyapp |
| Function Outputs and Destructuring Assignment | soliditymediumfunction |
| Array | soliditymediumdata |
| Mapping | soliditymediumdata |
| Structs | soliditymediumdata |
| Enum | soliditymediumdata |
| Data Locations | soliditymediumdata |
| Simple Storage | soliditymediumapp |
| Todo List | soliditymediumapp |
| Iterable Mapping | soliditymediumapp |
| Array Shift | soliditymediumapp |
| Array Replace Last | soliditymediumapp |
| Events | soliditymediumevent |
| Inheritance - Override | soliditymediuminheritance |
| Multiple Inheritance | soliditymediuminheritance |
| Calling Parent Constructors | soliditymediuminheritance |
| Calling Parent Functions | soliditymediuminheritance |
| Visibility | soliditymediuminheritancefunction |
| Immutable | soliditymediumdata |
| Payable | soliditymediumpayment |
| Fallback | soliditymediumpaymentfunction |
| Sending Ether | soliditymediumpayment |
| Ether Wallet | soliditymediumapp |
| Calling Other Contracts | soliditymediumcall other contract |
| Interface | soliditymediumcall other contract |
| Call | solidityhardfunctioncall other contract |
| Delegatecall | solidityhardfunctioncall other contract |
| New | soliditymediumcall other contract |
| Library | soliditymediumcall other contract |
| Hash Function | soliditymediumcrypto |
| Verifying Signature | solidityhardcrypto |
| Access Control | soliditymediumapp |
| Deleting Contracts | solidityhardcall other contract |
| Piggy Bank | solidityhardapp |
| ERC20 | freesolidityhardapp |
| Multi Sig Wallet | freesolidityhardapp |
| Re-Entrancy | freesolidityhardctfsecurity |
| Seven Eth | soliditymediumctfsecurity |
| King of Eth | soliditymediumctfsecurity |
| Wallet Hijack | solidityhardctfsecurity |
| Misaligned Storage | solidityhardctfsecurity |
| Bypass Contract Size | solidityhardctfsecurity |
| Multi Token Bank | solidityhardctfsecurity |
| ETH Flash Loan | solidityhardctfsecurity |
| ERC20 Flash Loan | solidityhardctfsecurity |
| Function Selector | soliditymediumctfsecurity |
| Dutch Auction | soliditymediumapp |
| English Auction | solidityhardapp |
| ERC721 | freesolidityhardapp |
| Hello World | freevypereasyapp |
| Data Types - Values | freevypereasydata |
| Data Types - References | freevypereasydata |
| Function Intro | freevypereasyfunction |
| Internal and External Functions | vypereasyfunction |
| View and Pure Functions | vypereasyfunction |
| Constructor | vypereasyfunction |
| Private and Public State Variables | vypereasydata |
| Constants | vypereasydata |
| If Else | vypereasycontrol flow |
| For Loop | vypereasycontrol flow |
| Error | vypereasyerror |
| Event | vypereasyevent |
| Payable | vypermediumpayment |
| Default Function | vypermediumpaymentfunction |
| Send Ether | vypermediumpayment |
| Raw Call | vyperhardfunctioncall other contract |
| Delegate Call | vyperhardfunctioncall other contract |
| Interface | vypermediumcall other contract |
| Hash Function | vypermediumcrypto |
| Verify Signature | vyperhardcrypto |
| Create Forwarder To | vyperhardcall other contract |
| Re-entrancy Lock | vyperhardsecurity |
| Self Destruct | vypermediumcall other contract |
| Hello CTF | freevypermediumctfsecurity |
| Forgot Access Control | freevypermediumctfsecurity |
| Drain Wallet | freevypermediumctfsecurity |
