제출 #101148

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
101148		E869120	케이크 (CEOI14_cake)	C++14	0 / 100	537 ms	15736 KiB

cake

#include <iostream>
#include <algorithm>
#include <limits>
#include <vector>
#include <functional>
using namespace std;
#pragma warning (disable: 4996)

class RangeMax {
public:
	vector<int>dat; int size_ = 1;

	void init(int sz) {
		while (size_ <= sz) size_ *= 2;
		dat.resize(size_ * 2, 0);
	}
	void update(int pos, int x) {
		pos += size_; dat[pos] = x;
		while (pos >= 2) {
			pos /= 2;
			dat[pos] = max(dat[pos * 2], dat[pos * 2 + 1]);
		}
	}
	int query_(int l, int r, int a, int b, int u) {
		if (l <= a && b <= r) return dat[u];
		if (r <= a || b <= l) return -(1 << 30);
		int v1 = query_(l, r, a, (a + b) >> 1, u * 2);
		int v2 = query_(l, r, (a + b) >> 1, b, u * 2 + 1);
		return max(v1, v2);
	}
	int query(int l, int r) {
		return query_(l, r, 0, size_, 1);
	}
};

int N, Q, A, P[1 << 18], C[1 << 18], q[1 << 18], D[1 << 18]; bool used[1 << 18];
int cnt1;
char op[1 << 18]; int x[1 << 18], e[1 << 18];

pair<int, int> Top10[11];

int main() {
	// 入力
	scanf("%d%d", &N, &A);
	for (int i = 1; i <= N; i++) scanf("%d", &P[i]);

	for (int i = 0; i <= 9; i++) {
		for (int j = 1; j <= N; j++) { if (N - i == P[j]) Top10[i] = make_pair(N - i, j); }
	}
	sort(Top10, Top10 + 11, greater<pair<int, int>>());

	// Top10 と番号を管理
	scanf("%d", &Q);
	for (int i = 1; i <= Q; i++) {
		cin >> op[i];
		if (op[i] == 'E') {
			// 入力部分
			scanf("%d%d", &x[i], &e[i]); if (x[i] == A) continue;

			// 変更部分
			int Z = Top10[0].first + 1; if (e[i] >= 2) Z = Top10[e[i] - 2].first;

			for (int j = 0; j < e[i] - 1; j++) { P[Top10[j].second]++; Top10[j].first += 1; }
			int flag = 10; Top10[10] = make_pair(-1, -1);
			for (int j = 0; j < 10; j++) { if (Top10[j].second == x[i]) flag = j; }
			Top10[flag] = make_pair(Z, x[i]);
			sort(Top10, Top10 + 11, greater<pair<int, int>>());

			if (q[x[i]] == 0) { D[x[i]] = P[x[i]]; }
			else { e[q[x[i]]] = P[x[i]]; }
			P[x[i]] = Z; q[x[i]] = i;
		}
		if (op[i] == 'F') { scanf("%d", &x[i]); }
	}
	for (int i = 1; i <= N; i++) {
		if (q[i] == 0) D[i] = P[i];
		else e[q[i]] = P[i];
	}

	// 本質： RMQ におけるクエリ
	RangeMax X; X.init(N + 2);
	for (int i = 1; i <= N; i++) X.update(i, D[i]);

	for (int i = 1; i <= Q; i++) {
		if (op[i] == 'E') {
			if (x[i] != 0) X.update(x[i], e[i]);
		}
		if (op[i] == 'F') {
			if (x[i] == A) {
				printf("0\n");
			}
			if (x[i] < A) {
				int score = (A - x[i]), G = X.query(x[i], A);
				int L = A + 1, R = N + 1, M, maxn = -(1 << 30);
				for (int j = 0; j < 22; j++) {
					M = (L + R) / 2;
					int F = X.query(A + 1, M + 1);
					if (F < G) { maxn = max(maxn, M); L = M; }
					else { R = M; }
				}

				if (maxn != -(1 << 30)) score += (maxn - A);
				printf("%d\n", score);
			}
			if (x[i] > A) {
				int score = (x[i] - A), G = X.query(A + 1, x[i] + 1);
				int L = 1, R = A, M, minx = (1 << 30);
				for (int j = 0; j < 22; j++) {
					M = (L + R) / 2;
					int F = X.query(M, A);
					if (F < G) { minx = min(minx, M); R = M; }
					else { L = M; }
				}

				if (minx != (1 << 30)) score += (A - minx);
				printf("%d\n", score);
			}
		}
	}
	return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

cake.cpp:7:0: warning: ignoring #pragma warning  [-Wunknown-pragmas]
 #pragma warning (disable: 4996)
 
cake.cpp: In function 'int main()':
cake.cpp:44:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d", &N, &A);
  ~~~~~^~~~~~~~~~~~~~~~
cake.cpp:45:36: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  for (int i = 1; i <= N; i++) scanf("%d", &P[i]);
                               ~~~~~^~~~~~~~~~~~~
cake.cpp:53:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &Q);
  ~~~~~^~~~~~~~~~
cake.cpp:58:9: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
    scanf("%d%d", &x[i], &e[i]); if (x[i] == A) continue;
    ~~~~~^~~~~~~~~~~~~~~~~~~~~~
cake.cpp:73:28: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   if (op[i] == 'F') { scanf("%d", &x[i]); }
                       ~~~~~^~~~~~~~~~~~~

• Subtask 1: 0 / 15
• Subtask 2: 0 / 15
• Subtask 3: 0 / 20
• Subtask 4: 0 / 50