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125 Mixture *special data structures geometry math sortings Statement B Baltic Olympiad in Informatics 2020, Day 1 (IOI, Unofficial Mirror Contest, Unrated) {1386} PROGRAMMING T
1216 Fancy Fence *special data structures dp ds math sortings Statement A Central-European Olympiad in Informatics, CEOI 2020, Day 1 (IOI, Unofficial Mirror Contest, Unrated) {1402} PROGRAMMING Editorial
116 Roads *special geometry sortings Statement B Central-European Olympiad in Informatics, CEOI 2020, Day 1 (IOI, Unofficial Mirror Contest, Unrated) {1402} PROGRAMMING Editorial
587 Teams Forming *special sortings Statement D Kotlin Heroes: Practice 7 {1532} PROGRAMMING
146 Almost Certainly *special constructive algorithms data structures sortings Statement D XVIII Open Olympiad in Informatics - Final Stage, Day 2 (Unrated, Online Mirror, IOI rules) {1940} PROGRAMMING
216 Three Arrays *special constructive algorithms implementation sortings Statement B XVIII Open Olympiad in Informatics - Final Stage, Day 2 (Unrated, Online Mirror, IOI rules) {1940} PROGRAMMING