제출 #5893

#제출 시각아이디문제언어결과실행 시간메모리
5893baneling100다각형 (GA5_polygon)C++98
100 / 100
0 ms1088 KiB
#include <stdio.h> long long A, B, Ans; int main(void) { scanf("%lld %lld",&A,&B); if(B>=4) { Ans=(B/2)*(B/2+1)-((A-1)/2)*((A-1)/2+1); if(A<=2) Ans-=2; } printf("%lld",Ans); return 0; }
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