QOJ.ac
QOJ
ID | 题目 | 提交者 | 结果 | 用时 | 内存 | 语言 | 文件大小 | 提交时间 | 测评时间 |
---|---|---|---|---|---|---|---|---|---|
#331931 | #7704. Plus Minus Four Squares | cry# | AC ✓ | 47ms | 3884kb | C++14 | 1.0kb | 2024-02-19 00:10:52 | 2024-02-19 00:10:52 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
const int MAX = 15000;
ll dp[5][MAX + 1][71];
int n;
int main() {
ios_base::sync_with_stdio(false);
cin.tie(0);
cin >> n;
vector<int> valid;
valid.push_back(0);
for(int i = 1; i * i <= n; i++) {
valid.push_back(i * i);
valid.push_back(-i * i);
}
sort(valid.begin(), valid.end());
int ans = 0;
for(int i = 0; i < valid.size(); i++) {
for(int j = i; j < valid.size(); j++) {
for(int k = j; k < valid.size(); k++) {
for(int l = k; l < valid.size(); l++) {
if((valid[i] && (valid[i] == -valid[j] || valid[i] == -valid[k] || valid[i] == -valid[l])) || (valid[j] && (valid[j] == -valid[k] || valid[j] == -valid[l])) || (valid[k] && valid[k] == -valid[l])) {
continue;
}
if(valid[i] < 0 && abs(valid[i]) > max({abs(valid[j]), abs(valid[k]), abs(valid[l])})) {
continue;
}
if(valid[i] + valid[j] + valid[k] + valid[l] == n) {
ans++;
}
}
}
}
}
cout << ans << "\n";
}
詳細信息
Test #1:
score: 100
Accepted
time: 0ms
memory: 3528kb
input:
64
output:
12
result:
ok single line: '12'
Test #2:
score: 0
Accepted
time: 0ms
memory: 3588kb
input:
65
output:
10
result:
ok single line: '10'
Test #3:
score: 0
Accepted
time: 8ms
memory: 3884kb
input:
2023
output:
245
result:
ok single line: '245'
Test #4:
score: 0
Accepted
time: 0ms
memory: 3580kb
input:
0
output:
1
result:
ok single line: '1'
Test #5:
score: 0
Accepted
time: 47ms
memory: 3640kb
input:
5000
output:
951
result:
ok single line: '951'
Test #6:
score: 0
Accepted
time: 3ms
memory: 3612kb
input:
1024
output:
182
result:
ok single line: '182'
Test #7:
score: 0
Accepted
time: 9ms
memory: 3612kb
input:
2048
output:
355
result:
ok single line: '355'
Test #8:
score: 0
Accepted
time: 33ms
memory: 3636kb
input:
4096
output:
708
result:
ok single line: '708'
Test #9:
score: 0
Accepted
time: 0ms
memory: 3804kb
input:
1
output:
1
result:
ok single line: '1'
Test #10:
score: 0
Accepted
time: 0ms
memory: 3580kb
input:
2
output:
1
result:
ok single line: '1'
Test #11:
score: 0
Accepted
time: 0ms
memory: 3848kb
input:
4
output:
2
result:
ok single line: '2'
Test #12:
score: 0
Accepted
time: 0ms
memory: 3612kb
input:
3
output:
1
result:
ok single line: '1'
Test #13:
score: 0
Accepted
time: 3ms
memory: 3620kb
input:
1111
output:
131
result:
ok single line: '131'