description Problem history Submissions question_mark Qna how_to_vote Vote #8076 upload 52 done 25 how_to_reg 19 gcd(x,y)=a, x+y=b timer 1s memory 1024MB keyboard_tab_rtl chevron_left 491 492 493 494 495 496 497 498 499 500 chevron_right keyboard_tab
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