QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#714743 | #9158. 分数 | Qwerty1232 | 5 | 2691ms | 3924kb | C++23 | 1.3kb | 2024-11-06 04:30:35 | 2024-11-06 04:30:36 |
Judging History
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'