結果
問題 | No.139 交差点 |
ユーザー |
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提出日時 | 2018-08-16 23:50:25 |
言語 | C++14 (gcc 13.3.0 + boost 1.87.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 2,195 bytes |
コンパイル時間 | 2,243 ms |
コンパイル使用メモリ | 171,072 KB |
実行使用メモリ | 6,824 KB |
最終ジャッジ日時 | 2024-10-05 00:12:29 |
合計ジャッジ時間 | 2,985 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge1 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 20 WA * 8 |
ソースコード
#include "bits/stdc++.h" using namespace std; typedef long long ll; typedef pair<int, int> pii; typedef pair<ll, ll> pll; const int INF = 1e9; const ll LINF = 1e18; template<class S,class T> ostream& operator << (ostream& out,const pair<S,T>& o){ out << "(" << o.first << "," << o.second << ")"; return out; } template<class T> ostream& operator << (ostream& out,const vector<T> V){ for(int i = 0; i < V.size(); i++){ out << V[i]; if(i!=V.size()-1) out << " ";} return out; } template<class T> ostream& operator << (ostream& out,const vector<vector<T> > Mat){ for(int i = 0; i < Mat.size(); i++) { if(i != 0) out << endl; out << Mat[i];} return out; } template<class S,class T> ostream& operator << (ostream& out,const map<S,T> mp){ out << "{ "; for(auto it = mp.begin(); it != mp.end(); it++){ out << it->first << ":" << it->second; if(mp.size()-1 != distance(mp.begin(),it)) out << ", "; } out << " }"; return out; } /* <url:https://yukicoder.me/problems/no/139> 問題文============================================================ ================================================================= 解説============================================================= ================================================================ */ ll solve(){ ll res = 0; ll N,L; cin >> N >> L; vector<ll> X(N),W(N),T(N); for(int i = 0; i < N;i++) cin >> X[i] >> W[i] >> T[i]; ll preX = 0; for(int i = 0; i < N;i++){ res += X[i] - preX; ll nowT = res, nextT = nowT + W[i]; int nowColor = nowT/T[i]%2; if(nowColor){ // 赤信号 nowT = (nowT+T[i]-1)/T[i]*T[i]; // 信号が変わるまで待つ nextT = nowT + W[i]; }else{ // 青信号 if(nowT/T[i]%2 != (nextT-1)/T[i]%2){ // 渡ったとき信号が変わるのであれば nowT = (nowT+T[i]-1)/T[i]*T[i]+T[i]; // 信号が2回変わるまで待つ nextT = nowT + W[i]; } } res = nextT; preX = X[i]+W[i]; } res += L - preX; return res; } int main(void) { cin.tie(0); ios_base::sync_with_stdio(false); cout << solve() << endl; return 0; }