Angels and Demons You are walking at midnight along a road that has N checkpoints numbered from 1 to N from left to ri... |
No More Shortest Path You are given a weighted directed graph with $n$ nodes and $m$ edges. Node $S$ is marked as the sour...
Moderate
4/5/9 |
Reassemble There are N posts in a line numbered from 1 to N from left to right. Each post i has a distance di ... |
Yet Another Frog Jumping Problem This is an interactive problem. (If you want to know about interactive problems, click here) There a...
Moderate
4/11/90 |