I compiled all MEX problems rating wise - 800 Rated 1. https://mirror.codeforces.com/problemset/problem/2057/A 2. https://mirror.codeforces.com/problemset/problem/1497/A 3. https://mirror.codeforces.com/problemset/problem/2049/A 4. https://mirror.codeforces.com/problemset/problem/2160/A 5. https://mirror.codeforces.com/problemset/problem/1566/B 6. https://mirror.codeforces.com/problemset/problem/1870/A 7. https://mirror.codeforces.com/problemset/problem/2127/A - 900 Rated 1. https://mirror.codeforces.com/problemset/problem/2149/C 2. https://mirror.codeforces.com/problemset/problem/2185/C 3. https://mirror.codeforces.com/problemset/problem/1406/A 4. https://mirror.codeforces.com/problemset/problem/1806/B -1000 Rated 1. https://mirror.codeforces.com/problemset/problem/1567/B 2. https://mirror.codeforces.com/problemset/problem/1566/C 3. https://mirror.codeforces.com/problemset/problem/2191/B 4. https://mirror.codeforces.com/problemset/problem/862/A 5. https://mirror.codeforces.com/problemset/problem/1054/B -1100 Rated 1. https://mirror.codeforces.com/problemset/problem/1496/B 2. https://mirror.codeforces.com/problemset/problem/1942/B 3. https://mirror.codeforces.com/problemset/problem/1863/C 4. https://mirror.codeforces.com/problemset/problem/1637/B 5. https://mirror.codeforces.com/problemset/problem/2183/B -1200 Rated 1. https://mirror.codeforces.com/problemset/problem/2021/B 2. https://mirror.codeforces.com/problemset/problem/2085/B 3. https://mirror.codeforces.com/problemset/problem/682/B -1300 Rated 1. https://mirror.codeforces.com/problemset/problem/1943/A 2. https://mirror.codeforces.com/problemset/problem/2101/A 3. https://mirror.codeforces.com/problemset/problem/1867/C -1400 Rated 1. https://mirror.codeforces.com/problemset/problem/1628/A 2. https://mirror.codeforces.com/problemset/problem/2123/E 3. https://mirror.codeforces.com/problemset/problem/2157/C - 1500 Rated 1. https://mirror.codeforces.com/problemset/problem/1325/C 2. https://mirror.codeforces.com/problemset/problem/2049/C 3. https://mirror.codeforces.com/problemset/problem/2003/D1 4. https://mirror.codeforces.com/problemset/problem/2093/E 5. https://mirror.codeforces.com/problemset/problem/2137/E - 1600 Rated 1. https://mirror.codeforces.com/problemset/problem/1364/C 2. https://mirror.codeforces.com/problemset/problem/1294/D 3. https://mirror.codeforces.com/problemset/problem/1875/D -1700 Rated 1. https://mirror.codeforces.com/problemset/problem/1619/E 2. https://mirror.codeforces.com/problemset/problem/739/A -1800 Rated 1. https://mirror.codeforces.com/problemset/problem/2185/G -1900 Rated 1. https://mirror.codeforces.com/problemset/problem/1375/D 2. https://mirror.codeforces.com/problemset/problem/1613/D - 2000-2100 Rated 1. https://mirror.codeforces.com/problemset/problem/1956/D 2. https://mirror.codeforces.com/problemset/problem/1905/D 3. https://mirror.codeforces.com/problemset/problem/1744/F 4. https://mirror.codeforces.com/problemset/problem/2003/D2 5. https://mirror.codeforces.com/problemset/problem/1684/E - 2200-2300 Rated 1. https://mirror.codeforces.com/problemset/problem/1659/E 2. https://mirror.codeforces.com/problemset/problem/2030/E 3. https://mirror.codeforces.com/problemset/problem/817/F 4. https://mirror.codeforces.com/problemset/problem/1870/E 5. https://mirror.codeforces.com/problemset/problem/1834/E 6. https://mirror.codeforces.com/problemset/problem/2146/E - 2400 Rated 1. https://mirror.codeforces.com/problemset/problem/1527/D 2. https://mirror.codeforces.com/problemset/problem/1139/E - 2700-2900 Rated 1. https://mirror.codeforces.com/problemset/problem/2049/F 2. https://mirror.codeforces.com/problemset/problem/1830/D 3. https://mirror.codeforces.com/problemset/problem/1083/C 4. https://mirror.codeforces.com/problemset/problem/1943/E1 - 3200-3300 Rated 1. https://mirror.codeforces.com/problemset/problem/1608/F 2. https://mirror.codeforces.com/problemset/problem/1870/G 3. https://mirror.codeforces.com/problemset/problem/1943/E2 4. https://mirror.codeforces.com/problemset/problem/1930/H 5. https://mirror.codeforces.com/problemset/problem/1740/H