# Intermediate Algorithm (USACO Silver Level)

## Video Solutions for Silver Questions

I selected several interesting questions in USACO Silver and made explained videos for them.

Checkout my solution videos for selected Silver Questions

### Prefix Sum

Algorithm | Example | Level |
---|---|---|

Prefix Sum | Prefix Sum | Easy |

Prefix Sum | Subarray Sums Divisible by K | Easy |

Prefix Sum | Maximum Subarray Sum | Easy |

Prefix Sum | Div7 | Easy |

Prefix Sum | breedcounting | Easy |

Prefix Sum | hoof paper scissors | Easy |

Prefix Sum | maxcross | Easy |

Prefix Sum | homework | Easy |

2D Prefix | paintbarn | Medium |

### Binary Search

Algorithm | Example | Level |
---|---|---|

Binary Search | Binary Search C++ | Easy |

Binary Search | Maximum Median | Easy |

Binary Search | B.Books | Easy |

Binary Search | C.Cellular Network | Easy |

Binary Search | tractor | Easy |

Binary Search | Cross Country Skiing | Easy |

Binary Search | Auto Complete | Easy |

Binary Search | Angry Cows | Easy |

Binary Search | Haybales | Easy |

Binary Search | Cow Dance Show | Easy |

Binary Search | Secret Cow Code | Easy |

Binary Search | Convention | Easy |

Binary Search | Berry Picking | Easy |

Binary Search | Loan Repayment | Easy |

Binary Search | Social Distancing | Easy |

### Two Pointers

Algorithm | Example | Level |
---|---|---|

Two Pointers | Circulation of Affection | Easy |

Two Pointers | Cow Lineup | Easy |

Two Pointers | Diamond Collector | Easy |

Two Pointers | Why did the Cow Cross the Road? | Easy |

Two Pointers | Paired Up | Easy |

Two Pointers | Diamond Collector | Hard |

Two Pointers | Layout | Hard |

### DFS

Algorithm | Example | Level |
---|---|---|

DFS | Grid Paths | Easy |

FloodFill | Flood Fill | Easy |

FloodFill | Grid Path | Easy |

DFS | Luxury River Cruise | Easy |

FloodFill | Switching on the Lights | Easy |

FloodFill | Build Gates | Easy |

FloodFill | Moocast | Easy |

FloodFill | Why did the Cow Cross the Road III | Easy |

FloodFill | Where’s Bessie | Easy |

FloodFill | Mootube | Easy |

FloodFill | Mooyo Mooyo | Easy |

FloodFill | Icy Perimeter | Easy |

DFS/Flood Fill | Fence Planning | Easy |

DFS | Milk Visits | Easy |

DFS/Flood Fill | Wormhole Sort | Easy |

### BFS

Algorithm | Example | Level |
---|---|---|

BFS | BFS Distance | Easy |

BFS | Piggyback | Easy |

BFS | Closing the Farm | Easy |

BFS | Muliplayer Moo | Easy |

BFS | The Great Revegetation | Easy |

BFS | Clock Tree | Easy |

### Tree

Algorithm | Example | Level |
---|---|---|

Tree | Tree Traversal | Easy |

Tree | Tree Algorithms | Easy |

### Sorting

Algorithm | Example | Level |
---|---|---|

Sorting | Field Reduction | Easy |

Sorting | The Bovine Shuffle | Easy |

Sorting | Rental Service | Easy |

Sorting | Out of Sorts | Easy |

Sorting | Mountain View | Easy |

### Geometry

Algorithm | Example | Level |
---|---|---|

Geometry | Load Balancing | Easy |

Geometry | Triangles | Easy |

Geometry | Field Reduction | Easy |