QOJ.ac

QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#878096#9971. 新本格魔法少女りすかzlt0 12345ms36200kbC++144.2kb2025-02-01 13:32:052025-02-01 13:32:10

Judging History

This is the latest submission verdict.

  • [2025-02-01 13:32:10]
  • Judged
  • Verdict: 0
  • Time: 12345ms
  • Memory: 36200kb
  • [2025-02-01 13:32:05]
  • Submitted

answer

// Problem: P11365 [Ynoi2024] 新本格魔法少女りすか
// Contest: Luogu
// URL: https://www.luogu.com.cn/problem/P11365
// Memory Limit: 128 MB
// Time Limit: 15000 ms
// 
// Powered by CP Editor (https://cpeditor.org)

#include <bits/stdc++.h>
#define pb emplace_back
#define fst first
#define scd second
#define mkp make_pair
#define uint unsigned
#define mems(a, x) memset((a), (x), sizeof(a))

using namespace std;
typedef long long ll;
typedef double db;
typedef unsigned long long ull;
typedef long double ldb;
typedef pair<int, int> pii;

namespace IO {
	const int maxn = 1 << 20;
	
    char ibuf[maxn], *iS, *iT, obuf[maxn], *oS = obuf;

	inline char gc() {
		return (iS == iT ? iT = (iS = ibuf) + fread(ibuf, 1, maxn, stdin), (iS == iT ? EOF : *iS++) : *iS++);
	}

	template<typename T = int>
	inline T read() {
		char c = gc();
		T x = 0;
		bool f = 0;
		while (c < '0' || c > '9') {
			f |= (c == '-');
			c = gc();
		}
		while (c >= '0' && c <= '9') {
			x = (x << 1) + (x << 3) + (c ^ 48);
			c = gc();
		}
		return f ? ~(x - 1) : x;
	}

	inline void flush() {
		fwrite(obuf, 1, oS - obuf, stdout);
		oS = obuf;
	}
	
	struct Flusher {
		~Flusher() {
			flush();
		}
	} AutoFlush;

	inline void pc(char ch) {
		if (oS == obuf + maxn) {
			flush();
		}
		*oS++ = ch;
	}

	template<typename T>
	inline void write(T x) {
		static char stk[64], *tp = stk;
		if (x < 0) {
			x = ~(x - 1);
			pc('-');
		}
		do {
			*tp++ = x % 10;
			x /= 10;
		} while (x);
		while (tp != stk) {
			pc((*--tp) | 48);
		}
	}
	
	template<typename T>
	inline void writesp(T x) {
		write(x);
		pc(' ');
	}
	
	template<typename T>
	inline void writeln(T x) {
		write(x);
		pc('\n');
	}
}

using IO::read;
using IO::write;
using IO::pc;
using IO::writesp;
using IO::writeln;

const int maxn = 500100;
const int B = 200;

int n, m, a[maxn], bel[maxn], L[maxn], R[maxn], b[maxn], c[maxn];
ll ans[maxn];
vector<pii> qq[maxn];

namespace BIT {
	int c[maxn];
	
	inline void update(int x, int d) {
		for (int i = x; i <= n; i += (i & (-i))) {
			c[i] += d;
		}
	}
	
	inline int query(int x) {
		int res = 0;
		for (int i = x; i; i -= (i & (-i))) {
			res += c[i];
		}
		return res;
	}
	
	inline void clear(int x) {
		for (int i = x; i <= n; i += (i & (-i))) {
			c[i] = 0;
		}
	}
}

void solve() {
	n = read();
	m = read();
	for (int i = 1; i <= n; ++i) {
		a[i] = read();
		bel[i] = (i - 1) / B + 1;
		if (!L[bel[i]]) {
			L[bel[i]] = i;
		}
		R[bel[i]] = i;
	}
	for (int i = 1, k, l, r; i <= m; ++i) {
		k = read();
		while (k--) {
			l = read();
			r = read();
			qq[i].pb(l, r);
			if (bel[l] == bel[r]) {
				for (int j = l; j <= r; ++j) {
					ans[i] += BIT::query(a[j]);
				}
				for (int j = l; j <= r; ++j) {
					BIT::update(a[j], 1);
				}
			} else {
				for (int j = l; j <= R[bel[l]]; ++j) {
					ans[i] += BIT::query(a[j]);
				}
				for (int j = L[bel[r]]; j <= r; ++j) {
					ans[i] += BIT::query(a[j]);
				}
				for (int j = l; j <= R[bel[l]]; ++j) {
					BIT::update(a[j], 1);
				}
				for (int j = L[bel[r]]; j <= r; ++j) {
					BIT::update(a[j], 1);
				}
			}
		}
		for (pii p : qq[i]) {
			int l = p.fst, r = p.scd;
			if (bel[l] == bel[r]) {
				for (int j = l; j <= r; ++j) {
					BIT::clear(a[j]);
				}
			} else {
				for (int j = l; j <= R[bel[l]]; ++j) {
					BIT::clear(a[j]);
				}
				for (int j = L[bel[r]]; j <= r; ++j) {
					BIT::clear(a[j]);
				}
			}
		}
	}
	for (int k = 1; k <= bel[n]; ++k) {
		mems(b, 0);
		for (int i = L[k]; i <= R[k]; ++i) {
			++b[a[i]];
		}
		for (int i = 1; i <= n; ++i) {
			b[i] += b[i - 1];
		}
		for (int i = 1; i <= n; ++i) {
			if (i < L[k]) {
				c[i] = c[i - 1] + b[a[i] - 1];
			} else if (i <= R[k]) {
				c[i] = c[i - 1];
			} else {
				c[i] = c[i - 1] + R[k] - L[k] + 1 - b[a[i]];
			}
		}
		for (int i = 1; i <= m; ++i) {
			for (pii p : qq[i]) {
				int l = p.fst, r = p.scd;
				ans[i] += c[r] - c[l - 1];
			}
		}
	}
	for (int i = 1; i <= m; ++i) {
		writeln(ans[i]);
	}
}

int main() {
	int T = 1;
	// scanf("%d", &T);
	while (T--) {
		solve();
	}
	return 0;
}

Details

Tip: Click on the bar to expand more detailed information

Subtask #1:

score: 0
Wrong Answer

Test #1:

score: 0
Wrong Answer
time: 12345ms
memory: 36200kb

input:

500000 50174
453952 363686 491616 32825 57465 422945 471561 73291 421205 416554 23295 133266 242225 330448 25039 340064 28713 465664 162059 323880 28978 273728 101338 161413 294941 214275 63951 267981 294251 202822 253124 272510 3268 37918 139343 385983 111577 311901 487665 482827 347449 416029 3065...

output:

103814769284
100083121443
111724081386
98514332290
114122962278
91515860517
109359514555
91485650843
98779574171
95514330765
115934010890
111681453493
85779408185
116960620464
107356579987
99121047917
97588615406
96539413135
112099833408
119533534100
100103101055
94822415452
99261059498
94731835959
...

result:

wrong answer 1st numbers differ - expected: '37140482224', found: '103814769284'

Subtask #2:

score: 0
Wrong Answer

Test #6:

score: 0
Wrong Answer
time: 4245ms
memory: 32624kb

input:

500000 5
157360 289139 98034 293691 150262 268366 36782 147093 365410 444658 343224 375392 278298 357620 389673 167019 7747 119244 102126 83512 3649 459230 197365 245259 38071 249539 34617 213697 292553 389625 395778 280152 280038 239519 301475 232272 145919 370004 422791 271143 488283 185166 351026...

output:

163284528119
162789734722
163394169907
163119890232
163432091187

result:

wrong answer 1st numbers differ - expected: '50666226791', found: '163284528119'

Subtask #3:

score: 0
Skipped

Dependency #1:

0%