Pe un cerc se plaseaza \( p \) semne \( X \) si \( q \) semne 0. Numarul de aparitii a 2 semne X consecutive este \( a \), iar numarul de aparitii a doua semne 0 consecutive este \( b \). Sa se afle \( a-b \) in functie de \( p \) si \( q \).
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TMMATE problema 4
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TMMATE problema 4
Yesterday is history,
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Tomorow is a mistery,
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