結果

問題 No.2520 L1 Explosion
ユーザー SSRSSSRS
提出日時 2023-10-27 21:49:01
言語 C++17
(gcc 13.3.0 + boost 1.87.0)
結果
WA  
実行時間 -
コード長 1,896 bytes
コンパイル時間 2,388 ms
コンパイル使用メモリ 208,436 KB
最終ジャッジ日時 2025-02-17 14:51:32
ジャッジサーバーID
(参考情報)
judge4 / judge3
このコードへのチャレンジ
(要ログイン)
ファイルパターン 結果
sample WA * 3
other WA * 22
権限があれば一括ダウンロードができます

ソースコード

diff #
プレゼンテーションモードにする

#include <bits/stdc++.h>
using namespace std;
const long long MOD = 998244353;
const long long HALF = 499122177;
int main(){
int N, M;
cin >> N >> M;
vector<long long> X(N), Y(N), H(N);
for (int i = 0; i < N; i++){
cin >> X[i] >> Y[i] >> H[i];
}
for (int i = 0; i < N; i++){
tie(X[i], Y[i]) = make_pair(X[i] + Y[i], X[i] - Y[i]);
}
vector<long long> X2, Y2;
for (int i = 0; i < N; i++){
X2.push_back(X[i] - (M - H[i]));
X2.push_back(X[i] + (M - H[i]));
Y2.push_back(Y[i] - (M - H[i]));
Y2.push_back(Y[i] + (M - H[i]));
}
sort(X2.begin(), X2.end());
sort(Y2.begin(), Y2.end());
X2.erase(unique(X2.begin(), X2.end()), X2.end());
Y2.erase(unique(Y2.begin(), Y2.end()), Y2.end());
int h = X2.size();
int w = Y2.size();
vector<vector<int>> imos(h, vector<int>(w, 0));
for (int i = 0; i < N; i++){
int x1 = lower_bound(X2.begin(), X2.end(), X[i] - (M - H[i])) - X2.begin();
int x2 = lower_bound(X2.begin(), X2.end(), X[i] + (M - H[i])) - X2.begin();
int y1 = lower_bound(Y2.begin(), Y2.end(), Y[i] - (M - H[i])) - Y2.begin();
int y2 = lower_bound(Y2.begin(), Y2.end(), Y[i] + (M - H[i])) - Y2.begin();
imos[x1][y1]++;
imos[x1][y2]--;
imos[x2][y1]--;
imos[x2][y2]++;
}
for (int i = 0; i < h; i++){
for (int j = 1; j < w; j++){
imos[i][j] += imos[i][j - 1];
}
}
for (int i = 1; i < h; i++){
for (int j = 0; j < w; j++){
imos[i][j] += imos[i - 1][j];
}
}
vector<long long> ans(N + 1, 0);
for (int i = 0; i < h - 1; i++){
for (int j = 0; j < w - 1; j++){
if (imos[i][j] > 0){
long long dx = (X2[i + 1] - X2[i]) % MOD;
long long dy = (Y2[j + 1] - Y2[j]) % MOD;
ans[imos[i][j]] += dx * dy % MOD * HALF % MOD;
ans[imos[i][j]] %= MOD;
}
}
}
cout << endl;
for (int i = 1; i <= N; i++){
cout << ans[i] << endl;
}
}
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