Submission #2891

#TimeUsernameProblemLanguageResultExecution timeMemory
2891zyslee다각형 (GA5_polygon)C++98
0 / 100
0 ms1088 KiB
#include<stdio.h> int main() { int a, b, aa, bb, ans; scanf("%d %d", &a, &b); aa = (a-1)/2; bb = (b+1)/2; ans = ((bb*(bb+1)/2)-(aa*(aa+1)/2))*2; if(a==1 || a==2) ans-=2; printf("%d", ans); return 0; }
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