Submission #864356

# Submission time Handle Problem Language Result Execution time Memory
864356 2023-10-22T15:29:58 Z maks007 Paths (BOI18_paths) C++14
70 / 100
453 ms 41880 KB
#include "bits/stdc++.h"

using namespace std;

#define int long long

vector <int> color;
vector <vector <int>> cntColor, g, dp;

signed main () {
	int n, m, k;
	cin >> n >> m >> k;
	color.resize(n);
	cntColor.resize(n, vector <int> (k + 1, 0));
	g.resize(n);
	for(int i = 0; i < n; i ++) cin >> color[i];
	for(int i = 0, u, v; i < m; i ++) {
		cin >> u >> v;
		u --, v --;
		g[u].push_back(v);
		g[v].push_back(u);
		cntColor[u][color[v]] ++;
		cntColor[v][color[u]] ++;
	}
	int ans = 0;
	for(int color2 = 1; color2 <= k; color2 ++) {
		for(int i = 0; i < n; i ++) {
			if(color[i] == color2) {
				for(int color1 = 1; color1 <= k; color1 ++) {
					if(color1 == color2) continue;
					ans += cntColor[i][color1];
					if(k == 2) continue;
					for(int color3 = color1 + 1; color3 <= k; color3 ++) {
						if(color3 == color2) continue;
						ans += 2 * (cntColor[i][color1] * cntColor[i][color3]);
					}
				}
			}
		}
  	}
  	if(k >= 4) {
  		for(int v = 0; v < n; v ++) {
  			for(auto u : g[v]) {
  				if(color[u] == color[v]) continue;
  				for(int i = 1; i <= k; i ++) {
  					if(i == color[u] || color[v] == i) continue;
  					for(int j = 1; j <= k; j ++) {
  						if(j == i || j == color[u] || j == color[v]) continue;
  						ans += cntColor[v][i] * cntColor[u][j];
  					}
  				}	
  			}
  		}
  	}
  	if(k >= 5) {
		dp.resize(n, vector <int> (1 << (k + 1)));
  		for(int i = 0; i < n; i ++) {
  			for(int color1 = 1; color1 <= k; color1 ++) {
  				for(int color2 = color1 + 1; color2 <= k; color2 ++) {
  					int cnt = 0;
  					for(auto u : g[i]) {
  						if(color[u] == color1 || color[u] == color2) cnt ++;
  					}
  					dp[i][(1 << color1) ^ (1 << color2)] = cnt;
  				}
  			}
  		}
  		
  		for(int mid = 0; mid < n; mid ++) {
  			for(auto l : g[mid]) {
  				if(color[mid] == color[l]) continue;
  				for(auto r : g[mid]) {
  					if(color[mid] == color[r] || color[l] == color[r]) continue;
  					int bitVal = ((1 << (k + 1)) - 1) ^ (1 << mid) ^ (1 << l) ^ (1 << r);
  					ans += dp[l][bitVal] * dp[r][bitVal];
  				}
  			}
  		}
  	}
  	cout << ans;
	return 0;
}
# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 0 ms 344 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 109 ms 8020 KB Output is correct
2 Correct 88 ms 7508 KB Output is correct
3 Correct 338 ms 41300 KB Output is correct
4 Correct 140 ms 11088 KB Output is correct
5 Correct 139 ms 11088 KB Output is correct
6 Correct 238 ms 29632 KB Output is correct
7 Correct 319 ms 41444 KB Output is correct
8 Correct 353 ms 41880 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 0 ms 344 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 109 ms 8020 KB Output is correct
12 Correct 88 ms 7508 KB Output is correct
13 Correct 338 ms 41300 KB Output is correct
14 Correct 140 ms 11088 KB Output is correct
15 Correct 139 ms 11088 KB Output is correct
16 Correct 238 ms 29632 KB Output is correct
17 Correct 319 ms 41444 KB Output is correct
18 Correct 353 ms 41880 KB Output is correct
19 Correct 108 ms 8020 KB Output is correct
20 Correct 88 ms 7404 KB Output is correct
21 Correct 326 ms 41448 KB Output is correct
22 Correct 142 ms 10996 KB Output is correct
23 Correct 139 ms 11128 KB Output is correct
24 Correct 288 ms 29636 KB Output is correct
25 Correct 322 ms 41388 KB Output is correct
26 Correct 354 ms 41832 KB Output is correct
27 Correct 101 ms 7404 KB Output is correct
28 Correct 135 ms 9568 KB Output is correct
29 Correct 402 ms 41640 KB Output is correct
30 Correct 312 ms 24356 KB Output is correct
31 Correct 330 ms 24544 KB Output is correct
32 Correct 453 ms 41296 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 0 ms 348 KB Output is correct
37 Correct 0 ms 348 KB Output is correct
38 Correct 1 ms 348 KB Output is correct
39 Correct 0 ms 348 KB Output is correct
40 Correct 1 ms 344 KB Output is correct
41 Correct 0 ms 348 KB Output is correct
42 Correct 0 ms 344 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Runtime error 46 ms 5156 KB Execution killed with signal 11
3 Halted 0 ms 0 KB -