#include <bits/stdc++.h>
using namespace std;
#define TRACE(x) cerr << #x << " = " << x << endl
#define _ << " _ " <<
#define fi first
#define se second
typedef long long ll;
typedef long double ld;
typedef pair<int, int> pii;
const string CORRECT = "tocno";
const string WRONG_TRIANGULATION = "neispravna triangulacija";
const string WRONG_COLORING = "neispravno bojenje";
const int MAXN = 2e5 + 10;
int n;
pii nxt[MAXN];
pair<pii, int> diagonals[MAXN * 2];
int dist(int a, int b) {
return (b + n - a) % n;
}
bool cmp(const pair<pii, int>& a, const pair<pii, int>& b) {
return dist(a.fi.fi, a.fi.se) < dist(b.fi.fi, b.fi.se);
}
bool check_triangle(int a, int b, int c) {
return a + b + c == 6 && a != b;
}
int main() {
ios_base::sync_with_stdio(false);
cin.tie(0);
cout.tie(0);
int t;
cin >> t;
cin >> n;
string colors;
cin >> colors;
for (int i = 0; i < n; i++) {
nxt[i] = {(i + 1) % n, colors[i] - '0'};
}
for (int i = 0; i < n - 3; i++) {
int a, b, c;
cin >> a >> b >> c;
a--; b--;
diagonals[2 * i] = {{a, b}, c};
diagonals[2 * i + 1] = {{b, a}, c};
}
int m = 2 * (n - 3);
sort(diagonals, diagonals + m, cmp);
bool coloring = true;
for (int i = 0; i < n - 2; i++) {
int a = diagonals[i].fi.fi;
int b = nxt[a].fi;
int c = diagonals[i].fi.se;
int color_a = nxt[a].se;
int color_b = nxt[b].se;
int color_c = diagonals[i].se;
if (nxt[b].fi != c) {
cout << WRONG_TRIANGULATION << "\n";
return 0;
}
coloring &= check_triangle(color_a, color_b, color_c);
nxt[a] = {c, color_c};
}
if (!coloring) {
cout << WRONG_COLORING << "\n";
} else {
cout << CORRECT << "\n";
}
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
380 KB |
Output is correct |
2 |
Correct |
2 ms |
376 KB |
Output is correct |
3 |
Correct |
2 ms |
376 KB |
Output is correct |
4 |
Correct |
2 ms |
376 KB |
Output is correct |
5 |
Correct |
2 ms |
376 KB |
Output is correct |
6 |
Correct |
2 ms |
376 KB |
Output is correct |
7 |
Correct |
2 ms |
504 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
380 KB |
Output is correct |
2 |
Correct |
2 ms |
376 KB |
Output is correct |
3 |
Correct |
2 ms |
376 KB |
Output is correct |
4 |
Correct |
2 ms |
376 KB |
Output is correct |
5 |
Correct |
2 ms |
376 KB |
Output is correct |
6 |
Correct |
2 ms |
376 KB |
Output is correct |
7 |
Correct |
2 ms |
504 KB |
Output is correct |
8 |
Correct |
3 ms |
376 KB |
Output is correct |
9 |
Correct |
3 ms |
376 KB |
Output is correct |
10 |
Correct |
3 ms |
376 KB |
Output is correct |
11 |
Correct |
3 ms |
376 KB |
Output is correct |
12 |
Correct |
3 ms |
376 KB |
Output is correct |
13 |
Correct |
3 ms |
376 KB |
Output is correct |
14 |
Correct |
3 ms |
424 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
160 ms |
6864 KB |
Output is correct |
2 |
Correct |
159 ms |
6916 KB |
Output is correct |
3 |
Correct |
159 ms |
7044 KB |
Output is correct |
4 |
Correct |
158 ms |
6916 KB |
Output is correct |
5 |
Correct |
160 ms |
7044 KB |
Output is correct |
6 |
Correct |
202 ms |
6976 KB |
Output is correct |
7 |
Correct |
199 ms |
6936 KB |
Output is correct |
8 |
Correct |
195 ms |
6888 KB |
Output is correct |
9 |
Correct |
200 ms |
6912 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
159 ms |
6916 KB |
Output is correct |
2 |
Correct |
159 ms |
6916 KB |
Output is correct |
3 |
Correct |
159 ms |
6916 KB |
Output is correct |
4 |
Correct |
158 ms |
6916 KB |
Output is correct |
5 |
Correct |
158 ms |
6916 KB |
Output is correct |
6 |
Correct |
197 ms |
6936 KB |
Output is correct |
7 |
Correct |
198 ms |
6980 KB |
Output is correct |
8 |
Correct |
201 ms |
6900 KB |
Output is correct |
9 |
Correct |
201 ms |
7044 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
380 KB |
Output is correct |
2 |
Correct |
2 ms |
376 KB |
Output is correct |
3 |
Correct |
2 ms |
376 KB |
Output is correct |
4 |
Correct |
2 ms |
376 KB |
Output is correct |
5 |
Correct |
2 ms |
376 KB |
Output is correct |
6 |
Correct |
2 ms |
376 KB |
Output is correct |
7 |
Correct |
2 ms |
504 KB |
Output is correct |
8 |
Correct |
3 ms |
376 KB |
Output is correct |
9 |
Correct |
3 ms |
376 KB |
Output is correct |
10 |
Correct |
3 ms |
376 KB |
Output is correct |
11 |
Correct |
3 ms |
376 KB |
Output is correct |
12 |
Correct |
3 ms |
376 KB |
Output is correct |
13 |
Correct |
3 ms |
376 KB |
Output is correct |
14 |
Correct |
3 ms |
424 KB |
Output is correct |
15 |
Correct |
160 ms |
6864 KB |
Output is correct |
16 |
Correct |
159 ms |
6916 KB |
Output is correct |
17 |
Correct |
159 ms |
7044 KB |
Output is correct |
18 |
Correct |
158 ms |
6916 KB |
Output is correct |
19 |
Correct |
160 ms |
7044 KB |
Output is correct |
20 |
Correct |
202 ms |
6976 KB |
Output is correct |
21 |
Correct |
199 ms |
6936 KB |
Output is correct |
22 |
Correct |
195 ms |
6888 KB |
Output is correct |
23 |
Correct |
200 ms |
6912 KB |
Output is correct |
24 |
Correct |
159 ms |
6916 KB |
Output is correct |
25 |
Correct |
159 ms |
6916 KB |
Output is correct |
26 |
Correct |
159 ms |
6916 KB |
Output is correct |
27 |
Correct |
158 ms |
6916 KB |
Output is correct |
28 |
Correct |
158 ms |
6916 KB |
Output is correct |
29 |
Correct |
197 ms |
6936 KB |
Output is correct |
30 |
Correct |
198 ms |
6980 KB |
Output is correct |
31 |
Correct |
201 ms |
6900 KB |
Output is correct |
32 |
Correct |
201 ms |
7044 KB |
Output is correct |
33 |
Correct |
159 ms |
6900 KB |
Output is correct |
34 |
Correct |
158 ms |
7044 KB |
Output is correct |
35 |
Correct |
161 ms |
6948 KB |
Output is correct |
36 |
Correct |
157 ms |
6892 KB |
Output is correct |
37 |
Correct |
158 ms |
6916 KB |
Output is correct |
38 |
Correct |
160 ms |
6952 KB |
Output is correct |
39 |
Correct |
160 ms |
6892 KB |
Output is correct |
40 |
Correct |
204 ms |
6888 KB |
Output is correct |
41 |
Correct |
199 ms |
6836 KB |
Output is correct |
42 |
Correct |
195 ms |
6916 KB |
Output is correct |
43 |
Correct |
201 ms |
6916 KB |
Output is correct |