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411 Finding lines constructive algorithms divide and conquer interactive Statement D Codeforces Round 407 (Div. 1) {788} PROGRAMMING Codeforces Round #407(Div.1 + Div.2) Editorial 2900
1982 Ehab and the Big Finale constructive algorithms divide and conquer graphs implementation interactive trees Statement F Codeforces Round 563 (Div. 2) {1174} PROGRAMMING Codeforces round #563 editorial 2300
964 Anti-Theft Road Planning bitmasks constructive algorithms divide and conquer greedy interactive math Statement F Codeforces Round 785 (Div. 2) {1673} PROGRAMMING 3250.0 Codeforces Round #785 (Div. 2) Editorial
460 Isaac's Queries brute force constructive algorithms dfs and similar divide and conquer greedy interactive math probabilities Statement G Codeforces Round 1066 (Div. 1 + Div. 2) {2157} PROGRAMMING 3000.0 Codeforces Round 1066 (Div. 1 + Div. 2) Editorial
55 Bowser's Castle (Easy Version) binary search constructive algorithms divide and conquer greedy interactive trees Statement H1 Codeforces Round 1085 (Div. 1 + Div. 2) {2207} PROGRAMMING 3250.0 Codeforces Round 1085 (Div. 1 + Div. 2) Editorial
43 Bowser's Castle (Medium Version) constructive algorithms divide and conquer interactive trees two pointers Statement H2 Codeforces Round 1085 (Div. 1 + Div. 2) {2207} PROGRAMMING 1000.0 Codeforces Round 1085 (Div. 1 + Div. 2) Editorial
60 Bowser's Castle (Hard Version) constructive algorithms divide and conquer interactive trees two pointers Statement H3 Codeforces Round 1085 (Div. 1 + Div. 2) {2207} PROGRAMMING 1500.0 Codeforces Round 1085 (Div. 1 + Div. 2) Editorial
3494 Unique Values (Hard version) binary search constructive algorithms divide and conquer interactive math Statement B2 Codeforces Round 1093 (Div. 1) {2219} PROGRAMMING 500.0 Codeforces Round 1093 (Div. 1, Div. 2) Editorial