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2611 Removing Leaves data structures dfs and similar divide and conquer greedy implementation trees Statement F Codeforces Round 656 (Div. 3) {1385} PROGRAMMING Codeforces Round #656 (Div. 3) Editorial 2300
696 Jumping Around data structures divide and conquer dp ds graphs shortest paths trees Statement F Educational Codeforces Round 111 (Rated for Div. 2) {1550} PROGRAMMING Educational Codeforces Round 111 Editorial
515 Squid Game data structures dfs and similar divide and conquer greedy trees Statement H Codeforces Global Round 17 {1610} PROGRAMMING 3500.0 Codeforces Global Round 17 Editorial
1061 Cats on the Upgrade (easy version) data structures dfs and similar divide and conquer dp graphs trees Statement E1 Codeforces Round 765 (Div. 2) {1625} PROGRAMMING 2000.0 Editorial of Codeforces Round #765 (Div. 2)
421 Air Reform data structures dfs and similar divide and conquer ds graphs implementation trees Statement E Codeforces Round 775 (Div. 1, based on Moscow Open Olympiad in Informatics) {1648} PROGRAMMING 2500.0 Codeforces Round #775 Editorial
1835 Unique Occurrences data structures dfs and similar divide and conquer dp ds trees Statement F Educational Codeforces Round 129 (Rated for Div. 2) {1681} PROGRAMMING 103163 2300
2058 Yet Another Array Counting Problem data structures divide and conquer dp trees Statement E Codeforces Round 833 (Div. 2) {1748} PROGRAMMING 2250.0 Codeforces Round #833 (Div. 2) Editorial 2300
486 Weighed Tree Radius data structures divide and conquer trees Statement G Educational Codeforces Round 141 (Rated for Div. 2) {1783} PROGRAMMING Educational Codeforces Round 141 Editorial
370 Li Hua and Path data structures dfs and similar divide and conquer ds trees Statement F Codeforces Round 864 (Div. 2) {1797} PROGRAMMING 3000.0 Codeforces Round 864 (Div. 2) Editorial
504 Gasoline prices data structures divide and conquer ds trees Statement E Codeforces Round 857 (Div. 1) {1801} PROGRAMMING 2500.0 Codeforces Round #857 Editorial
1692 Omsk Metro (hard version) data structures dfs and similar divide and conquer dp implementation math trees Statement F2 Codeforces Round 881 (Div. 3) {1843} PROGRAMMING Codeforces Round #881 (Div. 3) Editorial
415 Teleportation in Byteland data structures divide and conquer graphs shortest paths trees Statement F Codeforces Round 892 (Div. 2) {1859} PROGRAMMING 3000.0 Video solutions from Geothermal.
3333 Array Collapse data structures divide and conquer dp trees Statement D Educational Codeforces Round 160 (Rated for Div. 2) {1913} PROGRAMMING 123493
4011 01 Tree data structures divide and conquer greedy implementation sortings trees Statement D Hello 2024 {1919} PROGRAMMING 1500.0 2100
4088 Count Paths data structures dfs and similar divide and conquer dp ds trees Statement E Educational Codeforces Round 162 (Rated for Div. 2) {1923} PROGRAMMING Educational Codeforces Round 162 Editorial
239 Bermart Ice Cream data structures dfs and similar divide and conquer dp implementation trees Statement F Educational Codeforces Round 171 (Rated for Div. 2) {2026} PROGRAMMING