description Problem history Submissions question_mark Qna how_to_vote Vote #1142 upload 482 done 133 how_to_reg 118 여러 직사각형의 전체 면적 구하기 timer 1s memory 32MB keyboard_tab_rtl chevron_left 491 492 493 494 495 496 497 498 499 500 chevron_right keyboard_tab