제출 #142673

#제출 시각아이디문제언어결과실행 시간메모리
142673Bodo171이상한 기계 (APIO19_strange_device)C++14
10 / 100
5065 ms524292 KiB
#include <iostream> #include <set> using namespace std; set <long long > s; long long n,i,j,l,r,A,B,per; long long lim=1LL*1e18+1; long long gcd(long long x,long long y) { if((!x)||(!y)) return (x+y); return gcd(y,x%y); } int main() { cin>>n>>A>>B; long long t=gcd(A,B+1); A/=t; long long per; if(lim/A<=B) per=lim; else per=1LL*A*B; for(i=1;i<=n;i++) { cin>>l>>r; for(j=l;j<=r;j++) s.insert(j%per); } cout<<s.size(); return 0; }
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