제출 #440351

#제출 시각아이디문제언어결과실행 시간메모리
440351VladMStrange Device (APIO19_strange_device)C++14
0 / 100
1471 ms15888 KiB
#include <bits/stdc++.h> using namespace std; #define DIM 1000007 typedef pair<long long, long long> pll; long long n, A, B, l[DIM], r[DIM], mx, res; set<pll> s; int main() { cin>>n>>A>>B; if(A%2==0) A/=2; for(int i=1; i<=n; i++) { cin>>l[i]>>r[i]; } for(int i=1; i<=n; i++) { if(r[i]-l[i]+1>=A) res+=A; else res+=r[i]-l[i]+1; } cout<<res; return 0; }
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