#include <iostream> #include <utility> #include <set> constexpr int maxN = 1e5; constexpr int maxK = 10; int n, k; int canvas[2][maxN + 1]; std::pair<bool, int> where[maxN + 1]; bool used[maxN + 1]; int set[maxN + 1], size[maxN + 1]; int cnt; int ans[maxK + 1]; void clear() { for(int i=1; i<=2*n; i++) { used[i] = false; set[i] = i, size[i] = 1; } cnt = 0; } int findSet(int v) { if(set[v] == v) { return v; } return set[v] = findSet(set[v]); } void unionSets(int a, int b) { a = findSet(a); b = findSet(b); if(a != b) { if(size[a] < size[b]) { std::swap(a, b); } set[b] = a; size[a] += size[b]; } } void add(int v) { int v1, v2, v3; if(where[v].second == 1) { v1 = canvas[where[v].first][n]; } else { v1 = canvas[where[v].first][where[v].second - 1]; } v2 = canvas[!where[v].first][where[v].second]; if(where[v].second == n) { v3 = canvas[where[v].first][1]; } else { v3 = canvas[where[v].first][where[v].second + 1]; } std::set<int> S; if(used[v1]) { S.insert(findSet(v1)); } if(used[v2]) { S.insert(findSet(v2)); } if(used[v3]) { S.insert(findSet(v3)); } if(S.empty()) { cnt++; } else if(S.size() == 2) { cnt--; } else if(S.size() == 3) { cnt -= 2; } used[v] = true; for(auto u : S) { unionSets(v, u); } } int main() { std::ios_base::sync_with_stdio(false); std::cin.tie(NULL); std::cout.tie(NULL); std::cin >> n >> k; for(int i=1; i<=n; i++) { std::cin >> canvas[0][i]; where[canvas[0][i]] = {0, i}; } for(int i=1; i<=n; i++) { std::cin >> canvas[1][i]; where[canvas[1][i]] = {1, i}; } for(int i=1; i<=2*n; i++) { clear(); for(int j=i; j<=2*n; j++) { add(j); if(cnt <= k) { ans[cnt]++; } } } for(int i=1; i<=k; i++) { std::cout << ans[i] << ' '; } }
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 | #include <iostream> #include <utility> #include <set> constexpr int maxN = 1e5; constexpr int maxK = 10; int n, k; int canvas[2][maxN + 1]; std::pair<bool, int> where[maxN + 1]; bool used[maxN + 1]; int set[maxN + 1], size[maxN + 1]; int cnt; int ans[maxK + 1]; void clear() { for(int i=1; i<=2*n; i++) { used[i] = false; set[i] = i, size[i] = 1; } cnt = 0; } int findSet(int v) { if(set[v] == v) { return v; } return set[v] = findSet(set[v]); } void unionSets(int a, int b) { a = findSet(a); b = findSet(b); if(a != b) { if(size[a] < size[b]) { std::swap(a, b); } set[b] = a; size[a] += size[b]; } } void add(int v) { int v1, v2, v3; if(where[v].second == 1) { v1 = canvas[where[v].first][n]; } else { v1 = canvas[where[v].first][where[v].second - 1]; } v2 = canvas[!where[v].first][where[v].second]; if(where[v].second == n) { v3 = canvas[where[v].first][1]; } else { v3 = canvas[where[v].first][where[v].second + 1]; } std::set<int> S; if(used[v1]) { S.insert(findSet(v1)); } if(used[v2]) { S.insert(findSet(v2)); } if(used[v3]) { S.insert(findSet(v3)); } if(S.empty()) { cnt++; } else if(S.size() == 2) { cnt--; } else if(S.size() == 3) { cnt -= 2; } used[v] = true; for(auto u : S) { unionSets(v, u); } } int main() { std::ios_base::sync_with_stdio(false); std::cin.tie(NULL); std::cout.tie(NULL); std::cin >> n >> k; for(int i=1; i<=n; i++) { std::cin >> canvas[0][i]; where[canvas[0][i]] = {0, i}; } for(int i=1; i<=n; i++) { std::cin >> canvas[1][i]; where[canvas[1][i]] = {1, i}; } for(int i=1; i<=2*n; i++) { clear(); for(int j=i; j<=2*n; j++) { add(j); if(cnt <= k) { ans[cnt]++; } } } for(int i=1; i<=k; i++) { std::cout << ans[i] << ' '; } } |