QOJ.ac
QOJ
| ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
|---|---|---|---|---|---|---|---|---|---|
| #111022 | #6563. Four Square | Tobo# | AC ✓ | 2ms | 3496kb | C++20 | 1.7kb | 2023-06-05 14:41:07 | 2023-06-05 14:41:12 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
using i64 = long long;
#define N 2005
int x[4], y[4], sum;
bool dfs(int sta, int a, int b)
{
if (a * b == 0 && !sta)
return true;
if (a * b == 0 || !sta)
return false;
for (int i = 0; i < 4; i++)
{
if (!(sta >> i & 1))
continue;
if (x[i] <= a && y[i] <= b)
{
int newsta = sta ^ (1 << i);
for (int s = newsta;; s = (s - 1) & newsta)
{
if (dfs(s, a - x[i], b) && dfs(newsta ^ s, x[i], b - y[i]))
return 1;
if (dfs(s, a - x[i], y[i]) && dfs(newsta ^ s, a, b - y[i]))
return 1;
if (!s)
break;
}
}
if (x[i] <= b && y[i] <= a)
{
int newsta = sta ^ (1 << i);
for (int s = newsta;; s = (s - 1) & newsta)
{
if (dfs(s, a - y[i], b) && dfs(newsta ^ s, y[i], b - x[i]))
return 1;
if (dfs(s, a - y[i], x[i]) && dfs(newsta ^ s, a, b - x[i]))
return 1;
if (!s)
break;
}
}
}
return 0;
}
void solve()
{
for (int i = 0; i < 4; i++)
cin >> x[i] >> y[i], sum += x[i] * y[i];
int a = sqrt(sum + 0.5);
if (a * a != sum)
{
cout << 0;
return;
}
if (dfs(15, a, a))
cout << 1;
else
cout << 0;
}
signed main()
{
ios_base::sync_with_stdio(false);
cin.tie(nullptr);
int t = 1;
// cin >> t;
while (t--)
solve();
}
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 100
Accepted
time: 1ms
memory: 3336kb
input:
1 1 1 1 1 1 1 1
output:
1
result:
ok single line: '1'
Test #2:
score: 0
Accepted
time: 2ms
memory: 3460kb
input:
3 1 3 3 2 2 3 3
output:
0
result:
ok single line: '0'
Test #3:
score: 0
Accepted
time: 2ms
memory: 3456kb
input:
2 8 2 8 2 8 2 8
output:
1
result:
ok single line: '1'
Test #4:
score: 0
Accepted
time: 0ms
memory: 3396kb
input:
5 3 5 5 3 3 3 5
output:
1
result:
ok single line: '1'
Test #5:
score: 0
Accepted
time: 0ms
memory: 3348kb
input:
1 2 4 8 16 32 64 128
output:
0
result:
ok single line: '0'
Test #6:
score: 0
Accepted
time: 2ms
memory: 3340kb
input:
4 4 2 1 4 4 2 1
output:
0
result:
ok single line: '0'
Test #7:
score: 0
Accepted
time: 1ms
memory: 3344kb
input:
995 51 559 565 154 536 56 780
output:
0
result:
ok single line: '0'
Test #8:
score: 0
Accepted
time: 2ms
memory: 3336kb
input:
391 694 540 42 240 937 691 246
output:
0
result:
ok single line: '0'
Test #9:
score: 0
Accepted
time: 0ms
memory: 3348kb
input:
519 411 782 710 299 45 21 397
output:
0
result:
ok single line: '0'
Test #10:
score: 0
Accepted
time: 2ms
memory: 3256kb
input:
96 960 948 18 108 82 371 576
output:
0
result:
ok single line: '0'
Test #11:
score: 0
Accepted
time: 2ms
memory: 3352kb
input:
3 2 4 3 3 1 1 4
output:
0
result:
ok single line: '0'
Test #12:
score: 0
Accepted
time: 2ms
memory: 3288kb
input:
4 3 1 2 4 4 3 2
output:
0
result:
ok single line: '0'
Test #13:
score: 0
Accepted
time: 2ms
memory: 3348kb
input:
4 4 1 3 5 4 2 5
output:
0
result:
ok single line: '0'
Test #14:
score: 0
Accepted
time: 1ms
memory: 3344kb
input:
1000 1000 1000 1000 1000 1000 1000 1000
output:
1
result:
ok single line: '1'
Test #15:
score: 0
Accepted
time: 2ms
memory: 3496kb
input:
1000 999 998 1000 997 1000 997 997
output:
1
result:
ok single line: '1'
Test #16:
score: 0
Accepted
time: 1ms
memory: 3404kb
input:
1 3 3 3 3 3 4 7
output:
1
result:
ok single line: '1'
Test #17:
score: 0
Accepted
time: 0ms
memory: 3344kb
input:
2 5 5 4 7 1 6 2
output:
1
result:
ok single line: '1'
Test #18:
score: 0
Accepted
time: 2ms
memory: 3348kb
input:
12 2 12 7 7 12 16 4
output:
1
result:
ok single line: '1'
Test #19:
score: 0
Accepted
time: 1ms
memory: 3288kb
input:
7 2 2 14 5 14 7 12
output:
1
result:
ok single line: '1'
Test #20:
score: 0
Accepted
time: 2ms
memory: 3292kb
input:
32 36 5 1 1 37 35 5
output:
1
result:
ok single line: '1'
Test #21:
score: 0
Accepted
time: 2ms
memory: 3324kb
input:
28 30 30 1 31 1 2 30
output:
1
result:
ok single line: '1'
Test #22:
score: 0
Accepted
time: 0ms
memory: 3284kb
input:
66 68 9 11 7 66 9 64
output:
1
result:
ok single line: '1'
Test #23:
score: 0
Accepted
time: 0ms
memory: 3332kb
input:
59 44 25 44 40 32 40 52
output:
1
result:
ok single line: '1'
Test #24:
score: 0
Accepted
time: 2ms
memory: 3492kb
input:
4 4 2 3 4 2 3 2
output:
1
result:
ok single line: '1'