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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#473011 | #6412. Classical Geometry Problem | UESTC_Snow_Halation | WA | 21ms | 3860kb | C++17 | 2.3kb | 2024-07-11 20:58:09 | 2024-07-11 20:58:09 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef long double ld;
constexpr int max_n = 500;
double eps = 1e-8;
struct Color {
double r, g, b;
Color operator-(const Color& other) const { return {r - other.r, g - other.g, b - other.b}; }
Color operator/(const double k) const { return {r / k, g / k, b / k}; }
Color operator*(const double k) const { return {r * k, g * k, b * k}; }
double len2() const { return r*r + g*g + b*b; }
double len() const { return sqrt(len2()); }
};
vector<pair<array<int, 3>, double>> ans;
void solve() {
ans.clear();
Color target;
cin >> target.r >> target.g >> target.b;
int d[3] = {0, 1, 2};
if (target.r > target.g) {
swap(target.r, target.g);
swap(d[0], d[1]);
}
if (target.r > target.b) {
swap(target.r, target.b);
swap(d[0], d[2]);
}
if (target.g > target.b) {
swap(target.g, target.b);
swap(d[1], d[2]);
}
Color v = Color{255, 255, 255} - target;
if (target.r == 255) ans.emplace_back(array<int,3>{255,255,255},1000);
else {
Color nt = {0, 255 - v.g/v.r * 255, 255 - v.b/v.r * 255};
ans.emplace_back(array<int,3>{255,255,255},(target - nt).len());
target = nt;
}
if (target.g == 255) ans.emplace_back(array<int,3>{0, 255, 255}, 1000);
else {
Color nt = {0, 0, 255 - v.b/v.g * 255};
ans.emplace_back(array<int,3>{0,255,255},(target - nt).len());
target = nt;
}
if (target.b == 255) ans.emplace_back(array<int,3>{0, 0, 255}, 1000);
else {
Color nt = {0, 0, 0};
ans.emplace_back(array<int,3>{0,0,255},(target - nt).len());
target = nt;
}
int n = ans.size();
cout << n << '\n';
for (int i = n - 1; i >= 0; --i) {
for (int j = 0; j < 3; ++j) {
cout << ans[i].first[d[j]] << ' ';
}
cout << setprecision(12) << ans[i].second << '\n';
}
}
int main() {
// freopen("code.out", "w", stdout);
ios::sync_with_stdio(false);
cin.tie(nullptr);
int T = 1;
cin >> T;
// scanf("%d", &T);
for (int i = 1; i <= T; ++i) {
// cout << "Case " << i << ": ";
solve();
}
return 0;
}
/*
3 3
2.4.2
.....
4.8.4
.....
2.5.3
5 5
3.4.4.4.2
.........
4.7.7.7.4
.........
4.8.7.7.4
.........
4.7.7.7.5
.........
2.4.4.4.2
*/
Details
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Test #1:
score: 100
Accepted
time: 0ms
memory: 3860kb
input:
3 105 255 175 174 174 174 0 0 0
output:
3 0 255 0 1000 0 255 255 119 255 255 255 119 3 0 0 255 0 0 255 255 0 255 255 255 301.376840517 3 0 0 255 0 0 255 255 0 255 255 255 0
result:
ok ok (3 test cases)
Test #2:
score: -100
Wrong Answer
time: 21ms
memory: 3860kb
input:
10000 250 128 13 1 245 2 88 183 138 179 69 194 153 246 33 255 119 192 233 30 108 26 208 33 53 162 189 225 130 10 202 137 121 152 198 25 49 165 180 228 56 30 74 18 14 6 115 31 168 242 206 90 238 139 44 103 60 16 21 190 229 209 68 41 171 181 39 74 73 181 96 18 234 95 70 75 174 84 101 16 44 202 249 80 ...
output:
3 255 0 0 244.960629921 255 255 0 121.271562482 255 255 255 14.6838725235 3 0 255 0 244.920948617 0 255 255 1.00472091733 255 255 255 1.41198140476 3 0 255 0 98.0769230769 0 255 255 89.6454644917 255 255 255 113.949582887 3 0 0 255 50.3289473684 255 0 255 193.374653314 255 255 255 77.8970427654 3 25...
result:
wrong answer too far from the target: (246.000000, 33.000000, 153.000000) instead of (153, 246, 33) (test case 5)