QOJ.ac

QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#499843#9158. 分数Felix72100 ✓2325ms3708kbC++14998b2024-07-31 19:35:172024-07-31 19:35:20

Judging History

你现在查看的是最新测评结果

  • [2024-07-31 19:35:20]
  • 评测
  • 测评结果:100
  • 用时:2325ms
  • 内存:3708kb
  • [2024-07-31 19:35:17]
  • 提交

answer

/*蛋糕鱼乐园*/
#include <bits/stdc++.h>
#define lowbit(x) (x & (-x))
using namespace std;

int n, m; long long ans;
inline void dfs1(int a, int b, int c, int d, int minn)
{
	ans += max(0, min(((!a) ? m : ((n - b) / a)), (m - d) / c) - minn + 1) + max(0, (n - d) / c - minn + 1);
	for(int i = 1; ; ++i)
	{
		int A = 2 * i * c + a, B = 2 * i * d + b;
		int lim = max(minn, i + 1);
		if(1ll * lim * A + B > m) break;
		dfs1(c, d, A, B, lim);
	}
}
inline void dfs2(int a, int b, int minn)
{
	for(int i = 1; ; ++i)
	{
		int c = 2 * i * b + a;
		if(max(minn, i) * 2ll * c + b > m) break;
		dfs2(b, c, max(minn, i));
	}
	dfs1(0, b, 2 * b, a, minn);
}

int main()
{
//	freopen("text.in", "r", stdin);
//	freopen("prog.out", "w", stdout);
	ios::sync_with_stdio(false);
	cin.tie(0), cout.tie(0);
	cin >> n >> m;
	if(n > m) swap(n, m);
	dfs1(0, 1, 2, 0, 1);
	for(int i = 1; 4 * i * i + 1 <= m; ++i) dfs2(1, 2 * i, i);
	cout << ans << '\n';
	return 0;
}

/*

*/

Details

Tip: Click on the bar to expand more detailed information

Pretests

Pretest #1:

score: 5
Accepted
time: 0ms
memory: 3564kb

input:

99 99

output:

406

result:

ok 1 number(s): "406"

Pretest #2:

score: 5
Accepted
time: 0ms
memory: 3616kb

input:

98 97

output:

405

result:

ok 1 number(s): "405"

Pretest #3:

score: 5
Accepted
time: 0ms
memory: 3640kb

input:

99 96

output:

396

result:

ok 1 number(s): "396"

Pretest #4:

score: 5
Accepted
time: 0ms
memory: 3688kb

input:

995 977

output:

11153

result:

ok 1 number(s): "11153"

Pretest #5:

score: 5
Accepted
time: 0ms
memory: 3552kb

input:

991 990

output:

11220

result:

ok 1 number(s): "11220"

Pretest #6:

score: 5
Accepted
time: 0ms
memory: 3708kb

input:

976 968

output:

10900

result:

ok 1 number(s): "10900"

Pretest #7:

score: 5
Accepted
time: 0ms
memory: 3576kb

input:

7602 7864

output:

215706

result:

ok 1 number(s): "215706"

Pretest #8:

score: 5
Accepted
time: 0ms
memory: 3612kb

input:

7959 7735

output:

220256

result:

ok 1 number(s): "220256"

Pretest #9:

score: 5
Accepted
time: 0ms
memory: 3556kb

input:

7878 7863

output:

221162

result:

ok 1 number(s): "221162"

Pretest #10:

score: 5
Accepted
time: 0ms
memory: 3620kb

input:

7788 7658

output:

215323

result:

ok 1 number(s): "215323"

Pretest #11:

score: 5
Accepted
time: 2ms
memory: 3708kb

input:

95399 99767

output:

8285295

result:

ok 1 number(s): "8285295"

Pretest #12:

score: 5
Accepted
time: 2ms
memory: 3644kb

input:

98051 99642

output:

8439713

result:

ok 1 number(s): "8439713"

Pretest #13:

score: 5
Accepted
time: 2ms
memory: 3648kb

input:

95624 96007

output:

8068127

result:

ok 1 number(s): "8068127"

Pretest #14:

score: 5
Accepted
time: 2ms
memory: 3624kb

input:

99208 98047

output:

8412610

result:

ok 1 number(s): "8412610"

Pretest #15:

score: 5
Accepted
time: 26ms
memory: 3644kb

input:

997417 967722

output:

229917323

result:

ok 1 number(s): "229917323"

Pretest #16:

score: 5
Accepted
time: 22ms
memory: 3548kb

input:

987807 956529

output:

226426912

result:

ok 1 number(s): "226426912"

Pretest #17:

score: 5
Accepted
time: 26ms
memory: 3708kb

input:

971654 984345

output:

228363805

result:

ok 1 number(s): "228363805"

Pretest #18:

score: 5
Accepted
time: 402ms
memory: 3708kb

input:

7892259 7983727

output:

4647501224

result:

ok 1 number(s): "4647501224"

Pretest #19:

score: 5
Accepted
time: 2299ms
memory: 3612kb

input:

7937869 29796968

output:

15197555613

result:

ok 1 number(s): "15197555613"

Pretest #20:

score: 5
Accepted
time: 2299ms
memory: 3580kb

input:

29717543 29510173

output:

30904211576

result:

ok 1 number(s): "30904211576"


Final Tests

Test #1:

score: 5
Accepted
time: 0ms
memory: 3640kb

input:

96 98

output:

396

result:

ok 1 number(s): "396"

Test #2:

score: 5
Accepted
time: 0ms
memory: 3640kb

input:

100 99

output:

408

result:

ok 1 number(s): "408"

Test #3:

score: 5
Accepted
time: 0ms
memory: 3628kb

input:

99 99

output:

406

result:

ok 1 number(s): "406"

Test #4:

score: 5
Accepted
time: 0ms
memory: 3704kb

input:

963 951

output:

10634

result:

ok 1 number(s): "10634"

Test #5:

score: 5
Accepted
time: 0ms
memory: 3576kb

input:

958 974

output:

10795

result:

ok 1 number(s): "10795"

Test #6:

score: 5
Accepted
time: 0ms
memory: 3644kb

input:

966 990

output:

11003

result:

ok 1 number(s): "11003"

Test #7:

score: 5
Accepted
time: 0ms
memory: 3560kb

input:

7958 7947

output:

224482

result:

ok 1 number(s): "224482"

Test #8:

score: 5
Accepted
time: 0ms
memory: 3584kb

input:

7623 7730

output:

213444

result:

ok 1 number(s): "213444"

Test #9:

score: 5
Accepted
time: 0ms
memory: 3616kb

input:

7845 7783

output:

218916

result:

ok 1 number(s): "218916"

Test #10:

score: 5
Accepted
time: 0ms
memory: 3580kb

input:

7881 7773

output:

219451

result:

ok 1 number(s): "219451"

Test #11:

score: 5
Accepted
time: 0ms
memory: 3560kb

input:

99414 98698

output:

8465217

result:

ok 1 number(s): "8465217"

Test #12:

score: 5
Accepted
time: 2ms
memory: 3648kb

input:

98249 96148

output:

8237486

result:

ok 1 number(s): "8237486"

Test #13:

score: 5
Accepted
time: 2ms
memory: 3560kb

input:

99003 96832

output:

8324931

result:

ok 1 number(s): "8324931"

Test #14:

score: 5
Accepted
time: 2ms
memory: 3652kb

input:

98266 96030

output:

8231065

result:

ok 1 number(s): "8231065"

Test #15:

score: 5
Accepted
time: 25ms
memory: 3648kb

input:

968207 958885

output:

223522215

result:

ok 1 number(s): "223522215"

Test #16:

score: 5
Accepted
time: 26ms
memory: 3560kb

input:

959846 998397

output:

228770873

result:

ok 1 number(s): "228770873"

Test #17:

score: 5
Accepted
time: 25ms
memory: 3560kb

input:

965821 972280

output:

225359210

result:

ok 1 number(s): "225359210"

Test #18:

score: 5
Accepted
time: 397ms
memory: 3552kb

input:

7855098 7962479

output:

4622947400

result:

ok 1 number(s): "4622947400"

Test #19:

score: 5
Accepted
time: 2325ms
memory: 3580kb

input:

7841076 29648718

output:

15040798710

result:

ok 1 number(s): "15040798710"

Test #20:

score: 5
Accepted
time: 2253ms
memory: 3644kb

input:

29365129 29012208

output:

30267839959

result:

ok 1 number(s): "30267839959"

Extra Test:

score: 0
Extra Test Passed