Codeforces Beta Round #91 (Div. 2 Only) A. Lucky Division

01-13

Codeforces Beta Round #89 (Div. 2) A. String Task

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Codeforces Beta Round #85 (Div. 2 Only) A. Petya and Strings

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Codeforces Beta Round #84 (Div. 2 Only) A. Nearly Lucky Number

01-13

Codeforces Round #495 (Div. 2) A. Sonya and Hotels

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PAT 1001 A+B Format

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