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QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#714743#9158. 分数Qwerty12325 2691ms3924kbC++231.3kb2024-11-06 04:30:352024-11-06 04:30:36

Judging History

你现在查看的是最新测评结果

  • [2024-11-06 04:30:36]
  • 评测
  • 测评结果:5
  • 用时:2691ms
  • 内存:3924kb
  • [2024-11-06 04:30:35]
  • 提交

answer

#include <bits/stdc++.h>

int64_t ans = 0;
int n, m;

int64_t dfs1_calls = 0;
int64_t dfs2_calls = 0;

// (ax + b) / (cx + d)
bool dfs2(int a, int b, int c, int d, int x) {
    dfs2_calls++;

    int p = a * 2 * x + b;
    int q = c * 2 * x + d;

    if (q > n || p > m) {
        return false;
    }

    int dlt = 0;

    int r1 = (n - c * 2 * x - d + 2 * c) / (2 * c);
    int r2 = a == 0 ? int(1e9) : (m - a * 2 * x - b + 2 * a) / (2 * a);

    ans += std::max(0, std::min(r1, r2)) + std::max(0, std::min(r1, r2));

    for (int k = 1; p + 2 * k * q <= n; k++) {
        if (!dfs2(c, d, a + 2 * k * c, b + d * 2 * k, std::max(k, x))) {
            break;
        }
    }
    return true;
}

void dfs1(int a, int b, int x) {
    dfs1_calls++;

    dfs2(0, b, b, a, x + 1);
    for (int k = 1; b + 2 * int64_t(std::max(x, k) + 1) * (a + 2 * k * b) <= n; k++) {
        dfs1(b, a + 2 * k * b, std::max(x, k));
    }
}

int32_t main() {
    n = m = 3e7;
    n *= 0.9;

    std::cin >> n >> m;

    if (n < m) {
        std::swap(n, m);
    }

    dfs1(0, 1, 0);

    std::cout << ans << std::endl;

    std::cerr << dfs1_calls / 1e6 << "M" << std::endl;
    std::cerr << dfs2_calls / 1e6 << "M" << std::endl;
    return 0;
}

Details

Tip: Click on the bar to expand more detailed information

Pretests

Pretest #1:

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

input:

99 99

output:

406

result:

ok 1 number(s): "406"

Pretest #2:

score: 0
Wrong Answer
time: 0ms
memory: 3884kb

input:

98 97

output:

406

result:

wrong answer 1st numbers differ - expected: '405', found: '406'

Pretest #3:

score: 0
Wrong Answer
time: 0ms
memory: 3824kb

input:

99 96

output:

406

result:

wrong answer 1st numbers differ - expected: '396', found: '406'

Pretest #4:

score: 0
Wrong Answer
time: 0ms
memory: 3820kb

input:

995 977

output:

11304

result:

wrong answer 1st numbers differ - expected: '11153', found: '11304'

Pretest #5:

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

input:

991 990

output:

11220

result:

ok 1 number(s): "11220"

Pretest #6:

score: 0
Wrong Answer
time: 0ms
memory: 3884kb

input:

976 968

output:

10974

result:

wrong answer 1st numbers differ - expected: '10900', found: '10974'

Pretest #7:

score: 0
Wrong Answer
time: 0ms
memory: 3920kb

input:

7602 7864

output:

220906

result:

wrong answer 1st numbers differ - expected: '215706', found: '220906'

Pretest #8:

score: 0
Wrong Answer
time: 0ms
memory: 3884kb

input:

7959 7735

output:

224740

result:

wrong answer 1st numbers differ - expected: '220256', found: '224740'

Pretest #9:

score: 0
Wrong Answer
time: 0ms
memory: 3876kb

input:

7878 7863

output:

221472

result:

wrong answer 1st numbers differ - expected: '221162', found: '221472'

Pretest #10:

score: 0
Wrong Answer
time: 0ms
memory: 3880kb

input:

7788 7658

output:

217874

result:

wrong answer 1st numbers differ - expected: '215323', found: '217874'

Pretest #11:

score: 0
Wrong Answer
time: 2ms
memory: 3884kb

input:

95399 99767

output:

8552308

result:

wrong answer 1st numbers differ - expected: '8285295', found: '8552308'

Pretest #12:

score: 0
Wrong Answer
time: 2ms
memory: 3888kb

input:

98051 99642

output:

8537678

result:

wrong answer 1st numbers differ - expected: '8439713', found: '8537678'

Pretest #13:

score: 0
Wrong Answer
time: 2ms
memory: 3884kb

input:

95624 96007

output:

8091178

result:

wrong answer 1st numbers differ - expected: '8068127', found: '8091178'

Pretest #14:

score: 0
Wrong Answer
time: 2ms
memory: 3816kb

input:

99208 98047

output:

8483936

result:

wrong answer 1st numbers differ - expected: '8412610', found: '8483936'

Pretest #15:

score: 0
Wrong Answer
time: 30ms
memory: 3920kb

input:

997417 967722

output:

234921678

result:

wrong answer 1st numbers differ - expected: '229917323', found: '234921678'

Pretest #16:

score: 0
Wrong Answer
time: 30ms
memory: 3824kb

input:

987807 956529

output:

231667982

result:

wrong answer 1st numbers differ - expected: '226426912', found: '231667982'

Pretest #17:

score: 0
Wrong Answer
time: 31ms
memory: 3808kb

input:

971654 984345

output:

230499060

result:

wrong answer 1st numbers differ - expected: '228363805', found: '230499060'

Pretest #18:

score: 0
Wrong Answer
time: 467ms
memory: 3812kb

input:

7892259 7983727

output:

4686022284

result:

wrong answer 1st numbers differ - expected: '4647501224', found: '4686022284'

Pretest #19:

score: 0
Wrong Answer
time: 2594ms
memory: 3832kb

input:

7937869 29796968

output:

25747785050

result:

wrong answer 1st numbers differ - expected: '15197555613', found: '25747785050'

Pretest #20:

score: 0
Wrong Answer
time: 2691ms
memory: 3816kb

input:

29717543 29510173

output:

31060007206

result:

wrong answer 1st numbers differ - expected: '30904211576', found: '31060007206'


Final Tests

Test #1:

score: 0
Wrong Answer
time: 0ms
memory: 3880kb

input:

96 98

output:

406

result:

wrong answer 1st numbers differ - expected: '396', found: '406'

Test #2:

score: 0
Wrong Answer
time: 0ms
memory: 3816kb

input:

100 99

output:

410

result:

wrong answer 1st numbers differ - expected: '408', found: '410'

Test #3:

score: 5
Accepted
time: 0ms
memory: 3924kb

input:

99 99

output:

406

result:

ok 1 number(s): "406"

Test #4:

score: 0
Wrong Answer
time: 0ms
memory: 3880kb

input:

963 951

output:

10734

result:

wrong answer 1st numbers differ - expected: '10634', found: '10734'

Test #5:

score: 0
Wrong Answer
time: 0ms
memory: 3876kb

input:

958 974

output:

10948

result:

wrong answer 1st numbers differ - expected: '10795', found: '10948'

Test #6:

score: 0
Wrong Answer
time: 0ms
memory: 3876kb

input:

966 990

output:

11220

result:

wrong answer 1st numbers differ - expected: '11003', found: '11220'

Test #7:

score: 0
Wrong Answer
time: 0ms
memory: 3824kb

input:

7958 7947

output:

224740

result:

wrong answer 1st numbers differ - expected: '224482', found: '224740'

Test #8:

score: 0
Wrong Answer
time: 0ms
memory: 3820kb

input:

7623 7730

output:

215598

result:

wrong answer 1st numbers differ - expected: '213444', found: '215598'

Test #9:

score: 0
Wrong Answer
time: 0ms
memory: 3688kb

input:

7845 7783

output:

220122

result:

wrong answer 1st numbers differ - expected: '218916', found: '220122'

Test #10:

score: 0
Wrong Answer
time: 0ms
memory: 3880kb

input:

7881 7773

output:

221576

result:

wrong answer 1st numbers differ - expected: '219451', found: '221576'

Test #11:

score: 0
Wrong Answer
time: 2ms
memory: 3768kb

input:

99414 98698

output:

8509218

result:

wrong answer 1st numbers differ - expected: '8465217', found: '8509218'

Test #12:

score: 0
Wrong Answer
time: 2ms
memory: 3880kb

input:

98249 96148

output:

8366066

result:

wrong answer 1st numbers differ - expected: '8237486', found: '8366066'

Test #13:

score: 0
Wrong Answer
time: 2ms
memory: 3816kb

input:

99003 96832

output:

8459156

result:

wrong answer 1st numbers differ - expected: '8324931', found: '8459156'

Test #14:

score: 0
Wrong Answer
time: 0ms
memory: 3832kb

input:

98266 96030

output:

8368148

result:

wrong answer 1st numbers differ - expected: '8231065', found: '8368148'

Test #15:

score: 0
Wrong Answer
time: 29ms
memory: 3688kb

input:

968207 958885

output:

225074188

result:

wrong answer 1st numbers differ - expected: '223522215', found: '225074188'

Test #16:

score: 0
Wrong Answer
time: 30ms
memory: 3828kb

input:

959846 998397

output:

235254594

result:

wrong answer 1st numbers differ - expected: '228770873', found: '235254594'

Test #17:

score: 0
Wrong Answer
time: 29ms
memory: 3884kb

input:

965821 972280

output:

226440192

result:

wrong answer 1st numbers differ - expected: '225359210', found: '226440192'

Test #18:

score: 0
Wrong Answer
time: 464ms
memory: 3688kb

input:

7855098 7962479

output:

4668081684

result:

wrong answer 1st numbers differ - expected: '4622947400', found: '4668081684'

Test #19:

score: 0
Wrong Answer
time: 2536ms
memory: 3804kb

input:

7841076 29648718

output:

25515555334

result:

wrong answer 1st numbers differ - expected: '15040798710', found: '25515555334'

Test #20:

score: 0
Wrong Answer
time: 2647ms
memory: 3880kb

input:

29365129 29012208

output:

30531148404

result:

wrong answer 1st numbers differ - expected: '30267839959', found: '30531148404'