#### PROBLEM W18-JOSZEF WILDT

Proposed by Daniel Sitaru-Romania SOLUTION W18 Solution by Ruangkhaw Chacka-Chiangrai-Thailand

#### PROBLEM W47-JOSZEF WILDT

Proposed by Nicusor Minculete-Romania SOLUTION W47 Solution by Marian Ursarescu-Romania

#### PROBLEM W50-JOSZEF WILDT

Proposed by Mihaly Bencze-Romania SOLUTION W50 Solution 1 by Rovsen Pirguliyev-Sumgait-Azerbaijan, Solution 2 by Ravi Prakash-New Delhi-India, Solution 3 by…

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#### PROBLEM W4-JOSZEF WILDT

Proposed by D.M.Batinetu-Giurgiu, Neculai Stanciu-Romania SOLUTION W4 Solution by Shafiqur Rahman-Bangladesh

#### PROBLEM W7-JOSZEF WILDT

Proposed by Moubinool Omarjee-France SOLUTION W7 Solution by Shafiqur Rahman-Bangladesh

#### PROBLEM W13-JOSZEF WILDT

Proposed by Paolo Perfetti-Italy SOLUTION W13 Solution by Shafiqur Rahman-Bangladesh

#### PROBLEM W15-JOSZEF WILDT

Proposed by Paolo Perfetti-Italy SOLUTION W15 Solution 1 by Shafiqur Rahman-Bangladesh, Solution 2 by Khalef Ruhemi-Jarash-Jordan, Solution 3 by Obidah…

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#### PROBLEM W12-JOSZEF WILDT

Proposed by Jose Luiz Diaz Barrero-Barcelona-Spain SOLUTION W12 Solution 1 by Ravi Prakash-New Delhi-India, Solution 2 by Remus Florin Stanca-Romania,…

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#### PROBLEM W10-JOSZEF WILDT

Proposed by Jose Luiz Diaz Barrero-Barcelona-Spain SOLUTION W10 Solution 1 by Artan Ajredni-Presheva-Serbie, Solution 2 by Ravi Prakash-New Delhi-India, Solution…

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#### PROBLEM W11-JOZSEF WILDT

Proposed by Jose Luiz Diaz Barrero-Barcelona-Spain SOLUTION W11 Solution 1 by Soumitra Mandal-Chandar Nagore-India, Solution 2 by Shafiqur Rahman-Bangladesh