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QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#509126#9158. 分数juruoA100 ✓2957ms3944kbC++141.6kb2024-08-08 10:38:022024-08-08 10:38:02

Judging History

你现在查看的是最新测评结果

  • [2024-08-08 10:38:02]
  • 评测
  • 测评结果:100
  • 用时:2957ms
  • 内存:3944kb
  • [2024-08-08 10:38:02]
  • 提交

answer

#include <bits/stdc++.h>
using std::bitset;
using std::cout;
using std::deque;
using std::endl;
using std::greater;
using std::lower_bound;
using std::make_pair;
using std::map;
using std::max;
using std::min;
using std::multimap;
using std::multiset;
using std::nth_element;
using std::pair;
using std::priority_queue;
using std::queue;
using std::reverse; 
using std::set;
using std::sort;
using std::sqrt;
using std::stable_sort;
using std::string;
using std::swap;
using std::unique;
using std::upper_bound;
using std::vector;
typedef int li;
typedef long double lf;

inline li read(){
	li ans = 0, f = 1;
	char ch = getchar();
	while(ch < '0' || ch > '9'){
		f = (ch == '-') ? -1 : 1;
		ch = getchar();
	}
	while(ch <= '9' && ch >= '0'){
		ans = ans * 10 + (ch ^ 48);
		ch = getchar();
	}
	return ans * f;
} 

li n, m;
long long ans;

void dfs2(li a, li b, li c, li d, li v){
	li sum = max(0, (n - d) / c - v + 1);
	sum += max(0, min(!a ? m : (n - b) / a, (m - d) / c) - v + 1);
	ans += sum;
	for(li u = 1; u; u++){
		li A = 2 * c * u + a, B = 2 * d * u + b;
		if(1ll * A * max(u + 1, v) + B > m) break;
		dfs2(c, d, A, B, max(v, u + 1));
	}
}

void dfs1(li a, li b, li v){
	for(li u = 1; u; u++){
		li c = 2 * u * b + a;
		if(2ll * c * max(u, v) + b > m) break;
		dfs1(b, c, max(u, v));
	}
	dfs2(0, b, 2 * b, a, v);
}

int main(){
//	freopen("wonderful.ans", "r", stdin);
//	freopen("www.ww", "w", stdout);
	n = read(), m = read();
	if(n > m) swap(n, m);	
	dfs2(0, 1, 2, 0, 1);
	for(li i = 1; 4 * i * i + 1 <= m; i++) dfs1(1, 2 * i, i);
	printf("%lld\n", ans);
	return 0;
}

Details

Tip: Click on the bar to expand more detailed information

Pretests

Pretest #1:

score: 5
Accepted
time: 0ms
memory: 3756kb

input:

99 99

output:

406

result:

ok 1 number(s): "406"

Pretest #2:

score: 5
Accepted
time: 0ms
memory: 3752kb

input:

98 97

output:

405

result:

ok 1 number(s): "405"

Pretest #3:

score: 5
Accepted
time: 0ms
memory: 3808kb

input:

99 96

output:

396

result:

ok 1 number(s): "396"

Pretest #4:

score: 5
Accepted
time: 0ms
memory: 3944kb

input:

995 977

output:

11153

result:

ok 1 number(s): "11153"

Pretest #5:

score: 5
Accepted
time: 0ms
memory: 3804kb

input:

991 990

output:

11220

result:

ok 1 number(s): "11220"

Pretest #6:

score: 5
Accepted
time: 0ms
memory: 3756kb

input:

976 968

output:

10900

result:

ok 1 number(s): "10900"

Pretest #7:

score: 5
Accepted
time: 0ms
memory: 3812kb

input:

7602 7864

output:

215706

result:

ok 1 number(s): "215706"

Pretest #8:

score: 5
Accepted
time: 0ms
memory: 3804kb

input:

7959 7735

output:

220256

result:

ok 1 number(s): "220256"

Pretest #9:

score: 5
Accepted
time: 0ms
memory: 3748kb

input:

7878 7863

output:

221162

result:

ok 1 number(s): "221162"

Pretest #10:

score: 5
Accepted
time: 0ms
memory: 3820kb

input:

7788 7658

output:

215323

result:

ok 1 number(s): "215323"

Pretest #11:

score: 5
Accepted
time: 2ms
memory: 3812kb

input:

95399 99767

output:

8285295

result:

ok 1 number(s): "8285295"

Pretest #12:

score: 5
Accepted
time: 2ms
memory: 3880kb

input:

98051 99642

output:

8439713

result:

ok 1 number(s): "8439713"

Pretest #13:

score: 5
Accepted
time: 2ms
memory: 3792kb

input:

95624 96007

output:

8068127

result:

ok 1 number(s): "8068127"

Pretest #14:

score: 5
Accepted
time: 0ms
memory: 3792kb

input:

99208 98047

output:

8412610

result:

ok 1 number(s): "8412610"

Pretest #15:

score: 5
Accepted
time: 33ms
memory: 3824kb

input:

997417 967722

output:

229917323

result:

ok 1 number(s): "229917323"

Pretest #16:

score: 5
Accepted
time: 32ms
memory: 3740kb

input:

987807 956529

output:

226426912

result:

ok 1 number(s): "226426912"

Pretest #17:

score: 5
Accepted
time: 33ms
memory: 3888kb

input:

971654 984345

output:

228363805

result:

ok 1 number(s): "228363805"

Pretest #18:

score: 5
Accepted
time: 507ms
memory: 3880kb

input:

7892259 7983727

output:

4647501224

result:

ok 1 number(s): "4647501224"

Pretest #19:

score: 5
Accepted
time: 2957ms
memory: 3820kb

input:

7937869 29796968

output:

15197555613

result:

ok 1 number(s): "15197555613"

Pretest #20:

score: 5
Accepted
time: 2944ms
memory: 3748kb

input:

29717543 29510173

output:

30904211576

result:

ok 1 number(s): "30904211576"


Final Tests

Test #1:

score: 5
Accepted
time: 0ms
memory: 3760kb

input:

96 98

output:

396

result:

ok 1 number(s): "396"

Test #2:

score: 5
Accepted
time: 0ms
memory: 3724kb

input:

100 99

output:

408

result:

ok 1 number(s): "408"

Test #3:

score: 5
Accepted
time: 0ms
memory: 3760kb

input:

99 99

output:

406

result:

ok 1 number(s): "406"

Test #4:

score: 5
Accepted
time: 0ms
memory: 3796kb

input:

963 951

output:

10634

result:

ok 1 number(s): "10634"

Test #5:

score: 5
Accepted
time: 0ms
memory: 3888kb

input:

958 974

output:

10795

result:

ok 1 number(s): "10795"

Test #6:

score: 5
Accepted
time: 0ms
memory: 3752kb

input:

966 990

output:

11003

result:

ok 1 number(s): "11003"

Test #7:

score: 5
Accepted
time: 0ms
memory: 3820kb

input:

7958 7947

output:

224482

result:

ok 1 number(s): "224482"

Test #8:

score: 5
Accepted
time: 0ms
memory: 3752kb

input:

7623 7730

output:

213444

result:

ok 1 number(s): "213444"

Test #9:

score: 5
Accepted
time: 0ms
memory: 3760kb

input:

7845 7783

output:

218916

result:

ok 1 number(s): "218916"

Test #10:

score: 5
Accepted
time: 0ms
memory: 3804kb

input:

7881 7773

output:

219451

result:

ok 1 number(s): "219451"

Test #11:

score: 5
Accepted
time: 2ms
memory: 3748kb

input:

99414 98698

output:

8465217

result:

ok 1 number(s): "8465217"

Test #12:

score: 5
Accepted
time: 2ms
memory: 3756kb

input:

98249 96148

output:

8237486

result:

ok 1 number(s): "8237486"

Test #13:

score: 5
Accepted
time: 2ms
memory: 3808kb

input:

99003 96832

output:

8324931

result:

ok 1 number(s): "8324931"

Test #14:

score: 5
Accepted
time: 2ms
memory: 3736kb

input:

98266 96030

output:

8231065

result:

ok 1 number(s): "8231065"

Test #15:

score: 5
Accepted
time: 32ms
memory: 3756kb

input:

968207 958885

output:

223522215

result:

ok 1 number(s): "223522215"

Test #16:

score: 5
Accepted
time: 33ms
memory: 3888kb

input:

959846 998397

output:

228770873

result:

ok 1 number(s): "228770873"

Test #17:

score: 5
Accepted
time: 32ms
memory: 3744kb

input:

965821 972280

output:

225359210

result:

ok 1 number(s): "225359210"

Test #18:

score: 5
Accepted
time: 510ms
memory: 3808kb

input:

7855098 7962479

output:

4622947400

result:

ok 1 number(s): "4622947400"

Test #19:

score: 5
Accepted
time: 2933ms
memory: 3792kb

input:

7841076 29648718

output:

15040798710

result:

ok 1 number(s): "15040798710"

Test #20:

score: 5
Accepted
time: 2918ms
memory: 3740kb

input:

29365129 29012208

output:

30267839959

result:

ok 1 number(s): "30267839959"

Extra Test:

score: 0
Extra Test Passed