Explanation to the article by N. Ivanova-Gladilshchikova “All-Russian Olympiad for schoolchildren: more and more problems” (TrV No. 176, April 7, 2015). An unfortunate mistake crept into the article by N. Ivanova-Gladilshchikova “All-Russian Olympiad for schoolchildren: more and more problems” (TrV No. 176, April 7, 2015).

Explanation to the article by N. Ivanova-Gladilshchikova “All-Russian Olympiad for schoolchildren: more and more problems” (TrV No. 176, April 7, 2015). In the article by N. Ivanova-Gladilshchikova “All-Russian Olympiad for schoolchildren: more and more problems” (TrV No. 176, 7 ...