Codeforces Round 171 (Div. 2)
关于图片GPS信息的修改
UVA-10405 Longest Common Subsequence
TCO 2013 Round 1B DIV1
Codeforces Round 170 (Div. 2)
POJ-103 Stacking Boxes
UVA-111 History Grading
POJ-1651 Multiplication Puzzle
POJ-3624 Charm Bracelet
Codeforces Round 168 (Div. 2)
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