D - Areas on the Cross-Section Diagram Aizu - ALDS1_3_D

#include <bits/stdc++.h> #define INF 0x3f3f3f3f #define eps 1e-6 typedef long long LL; const double pi = acos(-1.0); const long long mod = 1e9; using namespace std; stack<int> s1; stack<pair<int,in
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