oj.uz

Submission #493520

# Submission time Handle Problem Language Result Execution time Memory
493520 2021-12-11T20:27:45 Z rainboy Izvanzemaljci (COI21_izvanzemaljci) C
100 / 100
 307 ms 11312 KB 
#include <stdio.h>
#include <string.h>
#include <sys/time.h>

#define N	100000
#define INF	0x3f3f3f3f3f3f3f3fLL
#define X	1000000001

long long min(long long a, long long b) { return a < b ? a : b; }
long long max(long long a, long long b) { return a > b ? a : b; }

unsigned int Z = 12345;

int rand_() {
	return (Z *= 3) >> 1;
}

int xx[N], yy[N], n;

int *zz;

void sort(int *ii, int l, int r) {
	while (l < r) {
		int i = l, j = l, k = r, i_ = ii[l + rand_() % (r - l)], tmp;

		while (j < k)
			if (zz[ii[j]] == zz[i_])
				j++;
			else if (zz[ii[j]] < zz[i_]) {
				tmp = ii[i], ii[i] = ii[j], ii[j] = tmp;
				i++, j++;
			} else {
				k--;
				tmp = ii[j], ii[j] = ii[k], ii[k] = tmp;
			}
		sort(ii, l, i);
		l = k;
	}
}

void solve1(int *ii, int n, long long *xx_, long long *yy_, long long *ss_) {
	int i, i_, x, y, xl, xr, yl, yr, s;

	if (n == 0) {
		if (ss_[0] > 1)
			xx_[0] = X + 1, yy_[0] = X + 1, ss_[0] = 1;
		return;
	}
	xl = X, xr = -X, yl = X, yr = -X;
	for (i = 0; i < n; i++) {
		i_ = ii[i], x = xx[i_], y = yy[i_];
		xl = min(xl, x), xr = max(xr, x);
		yl = min(yl, y), yr = max(yr, y);
	}
	s = max(max(xr - xl, yr - yl), 1);
	if (ss_[0] > s)
		xx_[0] = xl, yy_[0] = yl, ss_[0] = s;
}

void solve2(int *ii, int n, long long *xx_, long long *yy_, long long *ss_) {
	static int ypl[N], ypr[N], yql[N], yqr[N];
	int i, xl, xr, xp, xq, y, yl, yr, s;
	long long x0, y0, s0, x1, y1, s1;

	if (n == 0) {
		if (max(ss_[0], ss_[1]) > 1) {
			xx_[0] = -(X + 2), yy_[0] = -(X + 2), ss_[0] = 1;
			xx_[1] = X + 1, yy_[1] = -(X + 2), ss_[1] = 1;
		}
		return;
	}
	xl = xx[ii[0]], xr = xx[ii[n - 1]];
	yl = X, yr = -X;
	for (i = 0; i < n; i++) {
		y = yy[ii[i]];
		ypl[i] = yl = min(yl, y);
		ypr[i] = yr = max(yr, y);
	}
	yl = X, yr = -X;
	for (i = n - 1; i >= 0; i--) {
		y = yy[ii[i]];
		yql[i] = yl = min(yl, y);
		yqr[i] = yr = max(yr, y);
	}
	for (i = -1; i < n; i++) {
		xp = i == -1 ? -(X + 1) : xx[ii[i]], xq = i + 1 == n ? X + 1 : xx[ii[i + 1]];
		if (xp == xq)
			continue;
		if (i == -1)
			s0 = 1, x0 = -(X + 2), y0 = -(X + 2);
		else
			s0 = max(max(xp - xl, ypr[i] - ypl[i]), 1), x0 = xp - s0, y0 = ypr[i] - s0;
		if (i + 1 == n)
			s1 = 1, x1 = X + 1, y1 = -(X + 2);
		else
			s1 = max(max(xr - xq, yqr[i + 1] - yql[i + 1]), 1), x1 = xq, y1 = yqr[i + 1] - s1;
		s = max(s0, s1);
		if (max(ss_[0], ss_[1]) > s) {
			xx_[0] = x0, yy_[0] = y0, ss_[0] = s0;
			xx_[1] = x1, yy_[1] = y1, ss_[1] = s1;
		}
	}
}

void solve21(int *ii, int n, long long *xx_, long long *yy_, long long *ss_) {
	static long long xx1[3], yy1[3], ss1[3];
	static int ii1[N], ii2[N];
	int n1, n2, h, i, i_, lower, upper;

	lower = -X, upper = X;
	while (upper - lower > 1) {
		int y = (lower + upper) / 2;

		n1 = n2 = 0;
		for (i = 0; i < n; i++) {
			i_ = ii[i];
			if (yy[i_] <= y)
				ii1[n1++] = i_;
			else
				ii2[n2++] = i_;
		}
		ss1[0] = ss1[1] = ss1[2] = INF;
		solve2(ii1, n1, xx1, yy1, ss1), solve1(ii2, n2, xx1 + 2, yy1 + 2, ss1 + 2);
		if (max(max(ss_[0], ss_[1]), ss_[2]) > max(max(ss1[0], ss1[1]), ss1[2]))
			for (h = 0; h < 3; h++)
				xx_[h] = xx1[h], yy_[h] = yy1[h], ss_[h] = ss1[h];
		if (max(ss1[0], ss1[1]) < ss1[2])
			lower = y;
		else
			upper = y;
	}
}

int ypl[N], ypr[N], yql[N], yqr[N], ysl[N], ysr[N], ytl[N], ytr[N], xl, xr, xp, xq, xs, xt, yl, yr;
long long x0, y0, s0, x1, y1, s1, x2, y2, s2;

void try(int *ii, int n, int i, int j, long long *xx_, long long *yy_, long long *ss_) {
	xp = i == 0 ? -(X + 1) : xx[ii[i - 1]], xs = xx[ii[i]];
	xt = xx[ii[j]], xq = j + 1 == n ? X + 1 : xx[ii[j + 1]];
	yl = min(ysl[i], ytl[j]), yr = max(ysr[i], ytr[j]);
	if (xp < xs && xt < xq && (i == 0 || j + 1 == n || max(yr - yl, 1) <= xq - xp - 2)) {
		if (i == 0)
			s0 = 1, x0 = -(X + 2), y0 = -(X + 2);
		else
			s0 = max(max(xp - xl, ypr[i - 1] - ypl[i - 1]), 1), x0 = xp - s0, y0 = ypr[i - 1] - s0;
		if (j + 1 == n)
			s2 = 1, x2 = X + 1, y2 = -(X + 2);
		else
			s2 = max(max(xr - xq, yqr[j + 1] - yql[j + 1]), 1), x2 = xq, y2 = yqr[j + 1] - s2;
		s1 = max(max(xt - xs, yr - yl), 1), x1 = min(xs, j + 1 == n ? X + 1 : xq - 1 - s1), y1 = yl;
		if (max(max(ss_[0], ss_[1]), ss_[2]) > max(max(s0, s1), s2)) {
			xx_[0] = x0, yy_[0] = y0, ss_[0] = s0;
			xx_[1] = x1, yy_[1] = y1, ss_[1] = s1;
			xx_[2] = x2, yy_[2] = y2, ss_[2] = s2;
		}
	}
}

void update(int *ft, int i, int n, int x) {
	while (i < n) {
		ft[i] = max(ft[i], x);
		i |= i + 1;
	}
}

int query(int *ft, int i) {
	int x = -1;

	while (i >= 0) {
		x = max(x, ft[i]);
		i &= i + 1, i--;
	}
	return x;
}

void solve111(int *ii, int n, long long *xx_, long long *yy_, long long *ss_) {
	static int ii1[N], jj1[N], ii2[N], jj2[N], ii_[N], iil[N], iir[N], jj_[N], jjl[N], jjr[N];
	static int uu[N], vv[N], ft1[N], ft2[N];
	int ni, nj, i, i_, j, j_, y, lower, upper;

	if (n == 0) {
		if (max(max(ss_[0], ss_[1]), ss_[2]) > 1) {
			xx_[0] = -(X + 2), yy_[0] = -(X + 2), ss_[0] = 1;
			xx_[1] = 0, yy_[1] = -(X + 2), ss_[1] = 1;
			xx_[2] = X + 1, yy_[2] = -(X + 2), ss_[2] = 1;
		}
		return;
	}
	xl = xx[ii[0]], xr = xx[ii[n - 1]];
	yl = X, yr = -X;
	for (i = 0; i < n; i++) {
		y = yy[ii[i]];
		ypl[i] = yl = min(yl, y);
		ypr[i] = yr = max(yr, y);
	}
	yl = X, yr = -X;
	for (i = n - 1; i >= 0; i--) {
		y = yy[ii[i]];
		yql[i] = yl = min(yl, y);
		yqr[i] = yr = max(yr, y);
	}
	for (i = 0; i + 1 < n; i++) {
		xp = xx[ii[i]], xq = xx[ii[i + 1]];
		s0 = max(max(xp - xl, ypr[i] - ypl[i]), 1);
		s1 = max(max(xr - xq, yqr[i + 1] - yql[i + 1]), 1);
		if (s0 > s1)
			break;
	}
	i_ = i;
	yl = X, yr = -X;
	ysl[i_] = X, ysr[i_] = -X;
	for (i = i_ - 1; i >= 0; i--) {
		y = yy[ii[i]];
		ysl[i] = yl = min(yl, y);
		ysr[i] = yr = max(yr, y);
	}
	yl = X, yr = -X;
	for (i = i_; i < n; i++) {
		y = yy[ii[i]];
		ytl[i] = yl = min(yl, y);
		ytr[i] = yr = max(yr, y);
	}
	for (i = i_; i >= 0; i--)
		try(ii, n, i, n - 1, xx_, yy_, ss_);
	for (j = i_; j < n; j++) {
		try(ii, n, 0, j, xx_, yy_, ss_);
		try(ii, n, i_, j, xx_, yy_, ss_);
	}
	ni = 0;
	for (i = i_ - 1; i > 0; i--)
		if (xx[ii[i]] > xx[ii[i - 1]])
			ii1[ni++] = i;
	nj = 0;
	for (j = i_; j + 1 < n; j++)
		if (xx[ii[j]] < xx[ii[j + 1]])
			jj1[nj++] = j;
	for (i = 0, j = nj - 1; i < ni; i++) {
		i_ = ii1[i];
		while (j > 0) {
			j_ = jj1[j];
			xp = xx[ii[i_ - 1]], xs = xx[ii[i_]];
			xt = xx[ii[j_]], xq = xx[ii[j_ + 1]];
			yl = min(ysl[i_], ytl[j_]), yr = max(ysr[i_], ytr[j_]);
			s1 = max(max(xt - xs, yr - yl), 1), s2 = max(max(xr - xq, yqr[j_ + 1] - yql[j_ + 1]), 1);
			if (s1 <= s2)
				break;
			j--;
		}
		jj_[i] = j;
	}
	for (i = 0, j = 0; i < ni; i++) {
		i_ = ii1[i];
		while (j < nj && ysl[i_] <= ytl[jj1[j]])
			j++;
		jjl[i] = j;
	}
	for (i = 0, j = 0; i < ni; i++) {
		i_ = ii1[i];
		while (j < nj && ysr[i_] >= ytr[jj1[j]])
			j++;
		jjr[i] = j;
	}
	for (j = 0, i = ni - 1; j < nj; j++) {
		j_ = jj1[j];
		while (i > 0) {
			i_ = ii1[i];
			xp = xx[ii[i_ - 1]], xs = xx[ii[i_]];
			xt = xx[ii[j_]], xq = xx[ii[j_ + 1]];
			yl = min(ysl[i_], ytl[j_]), yr = max(ysr[i_], ytr[j_]);
			s1 = max(max(xt - xs, yr - yl), 1), s0 = max(max(xp - xl, ypr[i_ - 1] - ypl[i_ - 1]), 1);
			if (s1 <= s0)
				break;
			i--;
		}
		ii_[j] = i;
	}
	for (i = 0, j = 0; j < nj; j++) {
		j_ = jj1[j];
		while (i < ni && ytl[j_] <= ysl[ii1[i]])
			i++;
		iil[j] = i;
	}
	for (i = 0, j = 0; j < nj; j++) {
		j_ = jj1[j];
		while (i < ni && ytr[j_] >= ysr[ii1[i]])
			i++;
		iir[j] = i;
	}
	/* ysl[i_] <= ytl[j_] && ysr[i_] >= ytr[j_] */
	for (i = 0; i < ni; i++) {
		i_ = ii1[i];
		lower = -1, upper = min(jjl[i], jjr[i]);
		while (upper - lower > 1) {
			j = (lower + upper) / 2, j_ = jj1[j];
			if (ysr[i_] - ysl[i_] <= xx[ii[j_ + 1]] - xx[ii[i_ - 1]] - 2)
				upper = j;
			else
				lower = j;
		}
		lower = upper, upper = min(jjl[i], jjr[i]) - 1;
		if (lower > upper)
			continue;
		j = jj_[i];
		if (j < lower)
			try(ii, n, i_, jj1[lower], xx_, yy_, ss_);
		else if (j > upper)
			try(ii, n, i_, jj1[upper], xx_, yy_, ss_);
		else
			try(ii, n, i_, jj1[j], xx_, yy_, ss_);
	}
	/* ytl[j_] <= ysl[i_] && ytr[j_] >= ysr[i_] */
	for (j = 0; j < nj; j++) {
		j_ = jj1[j];
		lower = -1, upper = min(iil[j], iir[j]);
		while (upper - lower > 1) {
			i = (lower + upper) / 2, i_ = ii1[i];
			if (ytr[j_] - ytl[j_] <= xx[ii[j_ + 1]] - xx[ii[i_ - 1]] - 2)
				upper = i;
			else
				lower = i;
		}
		lower = upper, upper = min(iil[j], iir[j]) - 1;
		if (lower > upper)
			continue;
		i = ii_[j];
		if (i < lower)
			try(ii, n, ii1[lower], j_, xx_, yy_, ss_);
		else if (i > upper)
			try(ii, n, ii1[upper], j_, xx_, yy_, ss_);
		else
			try(ii, n, ii1[i], j_, xx_, yy_, ss_);
	}
	for (i = 0; i < ni; i++)
		ii2[i] = i;
	for (j = 0; j < nj; j++)
		jj2[j] = j;
	/* ysl[i_] <= ytl[j_] && ysr[i_] < ytr[j_] */
	for (i = 0; i < ni; i++) {
		i_ = ii1[i];
		uu[i] = ysl[i_] - (xx[ii[i_ - 1]] + 1);
	}
	for (j = 0; j < nj; j++) {
		j_ = jj1[j];
		vv[j] = ytr[j_] - (xx[ii[j_ + 1]] - 1);
	}
	zz = uu, sort(ii2, 0, ni);
	zz = vv, sort(jj2, 0, nj);
	memset(ft1, -1, nj * sizeof *ft1);
	memset(ft2, -1, nj * sizeof *ft2);
	for (i = 0, j = 0; i < ni; i++) {
		lower = jjr[i], upper = jjl[i] - 1;
		if (lower > upper)
			continue;
		i_ = ii2[i];
		while (j < nj && uu[i_] >= vv[j_ = jj2[j]])
			update(ft1, j_, nj, j_), update(ft2, nj - 1 - j_, nj, nj - 1 - j_), j++;
		j_ = query(ft1, min(jj_[i_], upper));
		if (j_ >= lower)
			try(ii, n, ii1[i_], jj1[j_], xx_, yy_, ss_);
		j_ = nj - 1 - query(ft2, nj - 1 - max(jj_[i_], lower));
		if (j_ <= upper)
			try(ii, n, ii1[i_], jj1[j_], xx_, yy_, ss_);
	}
	/* ysl[i_] > ytl[j_] && ysr[i_] >= ytr[j_] */
	for (i = 0; i < ni; i++) {
		i_ = ii1[i];
		uu[i] = -(ysr[i_] + (xx[ii[i_ - 1]] + 1));
	}
	for (j = 0; j < nj; j++) {
		j_ = jj1[j];
		vv[j] = -(ytl[j_] + (xx[ii[j_ + 1]] - 1));
	}
	zz = uu, sort(ii2, 0, ni);
	zz = vv, sort(jj2, 0, nj);
	memset(ft1, -1, nj * sizeof *ft1);
	memset(ft2, -1, nj * sizeof *ft2);
	for (i = 0, j = 0; i < ni; i++) {
		lower = jjl[i], upper = jjr[i] - 1;
		if (lower > upper)
			continue;
		i_ = ii2[i];
		while (j < nj && uu[i_] >= vv[j_ = jj2[j]])
			update(ft1, j_, nj, j_), update(ft2, nj - 1 - j_, nj, nj - 1 - j_), j++;
		j_ = query(ft1, min(jj_[i_], upper));
		if (j_ >= lower)
			try(ii, n, ii1[i_], jj1[j_], xx_, yy_, ss_);
		j_ = nj - 1 - query(ft2, nj - 1 - max(jj_[i_], lower));
		if (j_ <= upper)
			try(ii, n, ii1[i_], jj1[j_], xx_, yy_, ss_);
	}
}

int main() {
	static int ii[N];
	static long long xx_[3], yy_[3], ss_[3];
	int k, h, i, r;
	long long tmp;

	scanf("%d%d", &n, &k);
	for (i = 0; i < n; i++) {
		scanf("%d%d", &xx[i], &yy[i]);
		ii[i] = i;
	}
	ss_[0] = INF;
	if (k == 1)
		solve1(ii, n, xx_, yy_, ss_);
	else if (k == 2)
		for (r = 0; r < 2; r++) {
			zz = xx, sort(ii, 0, n);
			solve2(ii, n, xx_, yy_, ss_);
			for (i = 0; i < n; i++)
				tmp = xx[i], xx[i] = yy[i], yy[i] = tmp;
			for (h = 0; h < k; h++)
				tmp = xx_[h], xx_[h] = yy_[h], yy_[h] = tmp;
		}
	else if (k == 3) {
		for (r = 0; r < 4; r++) {
			zz = xx, sort(ii, 0, n);
			solve21(ii, n, xx_, yy_, ss_);
			for (i = 0; i < n; i++)
				tmp = xx[i], xx[i] = -yy[i], yy[i] = tmp;
			for (h = 0; h < k; h++)
				tmp = xx_[h], xx_[h] = -yy_[h], yy_[h] = tmp, xx_[h] -= ss_[h];
		}
		for (r = 0; r < 2; r++) {
			zz = xx, sort(ii, 0, n);
			solve111(ii, n, xx_, yy_, ss_);
			for (i = 0; i < n; i++)
				tmp = xx[i], xx[i] = yy[i], yy[i] = tmp;
			for (h = 0; h < k; h++)
				tmp = xx_[h], xx_[h] = yy_[h], yy_[h] = tmp;
		}
	}
	for (h = 0; h < k; h++)
		printf("%lld %lld %lld\n", xx_[h], yy_[h], ss_[h]);
	return 0;
}

Compilation message

izvanzemaljci.c:135:15: warning: built-in function 'y0' declared as non-function [-Wbuiltin-declaration-mismatch]
  135 | long long x0, y0, s0, x1, y1, s1, x2, y2, s2;
      |               ^~
izvanzemaljci.c:135:27: warning: built-in function 'y1' declared as non-function [-Wbuiltin-declaration-mismatch]
  135 | long long x0, y0, s0, x1, y1, s1, x2, y2, s2;
      |                           ^~
izvanzemaljci.c: In function 'main':
izvanzemaljci.c:399:2: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
  399 |  scanf("%d%d", &n, &k);
      |  ^~~~~~~~~~~~~~~~~~~~~
izvanzemaljci.c:401:3: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
  401 |   scanf("%d%d", &xx[i], &yy[i]);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 26 ms 1356 KB Output is correct
8 Correct 25 ms 1476 KB Output is correct
9 Correct 24 ms 1356 KB Output is correct
10 Correct 25 ms 1476 KB Output is correct
11 Correct 25 ms 1424 KB Output is correct

Subtask #2
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 332 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 56 ms 2976 KB Output is correct
11 Correct 57 ms 2896 KB Output is correct
12 Correct 55 ms 3024 KB Output is correct
13 Correct 56 ms 2980 KB Output is correct
14 Correct 58 ms 3012 KB Output is correct
15 Correct 55 ms 3016 KB Output is correct
16 Correct 55 ms 3012 KB Output is correct
17 Correct 51 ms 2764 KB Output is correct
18 Correct 48 ms 2628 KB Output is correct
19 Correct 45 ms 2504 KB Output is correct
20 Correct 45 ms 2628 KB Output is correct
21 Correct 57 ms 3008 KB Output is correct
22 Correct 56 ms 2984 KB Output is correct
23 Correct 54 ms 2964 KB Output is correct

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 332 KB Output is correct
2 Correct 0 ms 332 KB Output is correct
3 Correct 0 ms 332 KB Output is correct
4 Correct 0 ms 332 KB Output is correct
5 Correct 0 ms 332 KB Output is correct
6 Correct 0 ms 332 KB Output is correct
7 Correct 0 ms 332 KB Output is correct
8 Correct 0 ms 332 KB Output is correct
9 Correct 0 ms 332 KB Output is correct
10 Correct 0 ms 332 KB Output is correct
11 Correct 0 ms 332 KB Output is correct
12 Correct 0 ms 332 KB Output is correct
13 Correct 0 ms 332 KB Output is correct
14 Correct 0 ms 332 KB Output is correct
15 Correct 0 ms 332 KB Output is correct
16 Correct 0 ms 332 KB Output is correct
17 Correct 0 ms 332 KB Output is correct
18 Correct 0 ms 332 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 0 ms 332 KB Output is correct
21 Correct 0 ms 332 KB Output is correct
22 Correct 0 ms 332 KB Output is correct
23 Correct 0 ms 332 KB Output is correct
24 Correct 0 ms 332 KB Output is correct
25 Correct 0 ms 332 KB Output is correct
26 Correct 1 ms 332 KB Output is correct

Subtask #4
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 460 KB Output is correct
2 Correct 3 ms 460 KB Output is correct
3 Correct 3 ms 460 KB Output is correct
4 Correct 3 ms 460 KB Output is correct
5 Correct 3 ms 460 KB Output is correct
6 Correct 3 ms 460 KB Output is correct
7 Correct 3 ms 460 KB Output is correct
8 Correct 3 ms 460 KB Output is correct
9 Correct 3 ms 460 KB Output is correct
10 Correct 3 ms 460 KB Output is correct
11 Correct 3 ms 460 KB Output is correct
12 Correct 3 ms 460 KB Output is correct
13 Correct 3 ms 460 KB Output is correct
14 Correct 3 ms 460 KB Output is correct
15 Correct 2 ms 460 KB Output is correct
16 Correct 2 ms 460 KB Output is correct
17 Correct 3 ms 460 KB Output is correct
18 Correct 2 ms 460 KB Output is correct
19 Correct 2 ms 460 KB Output is correct
20 Correct 3 ms 460 KB Output is correct
21 Correct 3 ms 460 KB Output is correct
22 Correct 3 ms 460 KB Output is correct
23 Correct 2 ms 460 KB Output is correct
24 Correct 2 ms 460 KB Output is correct

Subtask #5
32.0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 492 KB Output is correct
2 Correct 3 ms 460 KB Output is correct
3 Correct 3 ms 460 KB Output is correct
4 Correct 3 ms 460 KB Output is correct
5 Correct 2 ms 460 KB Output is correct
6 Correct 3 ms 460 KB Output is correct
7 Correct 3 ms 460 KB Output is correct
8 Correct 3 ms 460 KB Output is correct
9 Correct 3 ms 460 KB Output is correct
10 Correct 3 ms 460 KB Output is correct
11 Correct 2 ms 460 KB Output is correct
12 Correct 3 ms 460 KB Output is correct
13 Correct 3 ms 460 KB Output is correct
14 Correct 261 ms 7628 KB Output is correct
15 Correct 281 ms 10052 KB Output is correct
16 Correct 274 ms 10236 KB Output is correct
17 Correct 290 ms 11312 KB Output is correct
18 Correct 262 ms 10620 KB Output is correct
19 Correct 290 ms 10692 KB Output is correct
20 Correct 307 ms 10880 KB Output is correct
21 Correct 240 ms 8780 KB Output is correct
22 Correct 263 ms 9936 KB Output is correct
23 Correct 270 ms 10632 KB Output is correct
24 Correct 275 ms 10732 KB Output is correct
25 Correct 286 ms 9924 KB Output is correct
26 Correct 291 ms 10560 KB Output is correct