제출 #1233685

#제출 시각아이디문제언어결과실행 시간메모리
1233685nikulid가장 긴 여행 (IOI23_longesttrip)C++20
5 / 100
3 ms404 KiB
#include "longesttrip.h" #include <stack> using namespace std; #define pb push_back vector<int> longest_trip(int n, int d){ vector<int> ans; if(d==3){ for(int i=0; i<n; i++){ ans.pb(i); } } else if(d==2){ // surely there still exists a round trip... // why is this screaming linked list :( bool has_split=0; stack<int> cur; for(int i=0; i<n-1; i++){ cur.push(i); if(!are_connected({i}, {i+1})){ if(i>0)has_split=true; while(!cur.empty()){ ans.pb(cur.top()); cur.pop(); } } } if(!has_split)ans.pb(n-1); while(!cur.empty()){ ans.pb(cur.top()); cur.pop(); } if(has_split)ans.pb(n-1); } return ans; }
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