#include <bits/stdc++.h> #define FOR(i, n) for(int i = 0; i < (n); ++i) #define REP(i, a, b) for(int i = (a); i < (b); ++i) #define TRAV(i, n) for(auto &i : n) #define SZ(x) (int)(x).size() #define PR std::pair #define MP std::make_pair #define X first #define Y second typedef long long ll; typedef std::pair<int, int> PII; typedef std::vector<int> VI; struct Tree{ VI t; int BOTTOM; void build(int sz){ BOTTOM = 1; while(BOTTOM < sz) BOTTOM *= 2; t.resize(BOTTOM*2); } void setmax(int a, int b, int w){ a += BOTTOM; b += BOTTOM+1; while(a < b){ if(a&1){ t[a] = std::max(t[a], w); a++; } if(b&1){ b--; t[b] = std::max(t[b], w); } a >>= 1; b >>= 1; } } int query(int v){ v += BOTTOM; int mx = 0; while(v >= 1){ mx = std::max(mx, t[v]); v >>= 1; } return mx; } }; int n, m; Tree tp, tl; std::set<int> sy[100005], sx[100005]; int good(int r, int c){ int styk = 0; int col = m-c+1; if(tp.query(r-1) >= col-1) styk = styk|1; int row = n-r+1; if(tl.query(row-1) >= c-1) styk = styk|2; return styk; } //int ciag; void placer(PII start){ std::vector<PII> stack; stack.push_back(start); //ciag--; while(SZ(stack)){ // ciag++; PII pos = stack.back(); stack.pop_back(); int r = pos.X; int c = pos.Y; //assert(r < n && c > 1); int col = m-pos.Y+1; tp.setmax(0, r, col); auto poz = sy[r+1].lower_bound(c-1); if(poz != sy[r+1].end()){ stack.push_back(MP(r+1, *poz)); //assert(sx[*poz].count(r+1)); sx[*poz].erase(r+1); sy[r+1].erase(poz); } auto pz = sx[c-1].upper_bound(r+1); if(pz != sx[c-1].begin()){ pz--; stack.push_back(MP(*pz, c-1)); //assert(sy[*pz].count(c-1)); sy[*pz].erase(c-1); sx[c-1].erase(pz); } if(SZ(stack) >= 2 && stack.back() == stack[SZ(stack)-2]) stack.pop_back(); } } void placel(PII start){ std::vector<PII> stack; stack.push_back(start); //ciag--; while(SZ(stack)){ //ciag++; PII pos = stack.back(); stack.pop_back(); int r = pos.X; int c = pos.Y; //assert(r > 1 && c < m); int row = n-pos.X+1; tl.setmax(0, row, c); auto poz = sy[r-1].upper_bound(c+1); if(poz != sy[r-1].begin()){ poz--; stack.push_back(MP(r-1, *poz)); //assert(sx[*poz].count(r-1)); sx[*poz].erase(r-1); sy[r-1].erase(poz); } auto pz = sx[c+1].lower_bound(r-1); if(pz != sx[c+1].end()){ stack.push_back(MP(*pz, c+1)); //assert(sy[*pz].count(c+1)); sy[*pz].erase(c+1); sx[c+1].erase(pz); } if(SZ(stack) >= 2 && stack.back() == stack[SZ(stack)-2]) stack.pop_back(); } } int main(){ int k; std::scanf("%d%d%d", &n, &m, &k); tp.build(n+1); tl.build(n+1); tp.setmax(0, 0, m); tl.setmax(0, 0, m); int x = 0; FOR(_, k){ int r, c, z; std::scanf("%d%d%d", &r, &c, &z); r = (r^x)%n; c = (c^x)%m; r++; c++; int styk = good(r, c); if(styk == 3){ std::printf("TAK\n"); x = x^z; }else{ std::printf("NIE\n"); if(styk == 2) placel(MP(r, c)); else if(styk == 1) placer(MP(r, c)); else{ sx[c].insert(r); sy[r].insert(c); } } } //assert(ciag <= k); //std::cerr << ciag << ", a k bylo " << k << "\n"; return 0; }
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 | #include <bits/stdc++.h> #define FOR(i, n) for(int i = 0; i < (n); ++i) #define REP(i, a, b) for(int i = (a); i < (b); ++i) #define TRAV(i, n) for(auto &i : n) #define SZ(x) (int)(x).size() #define PR std::pair #define MP std::make_pair #define X first #define Y second typedef long long ll; typedef std::pair<int, int> PII; typedef std::vector<int> VI; struct Tree{ VI t; int BOTTOM; void build(int sz){ BOTTOM = 1; while(BOTTOM < sz) BOTTOM *= 2; t.resize(BOTTOM*2); } void setmax(int a, int b, int w){ a += BOTTOM; b += BOTTOM+1; while(a < b){ if(a&1){ t[a] = std::max(t[a], w); a++; } if(b&1){ b--; t[b] = std::max(t[b], w); } a >>= 1; b >>= 1; } } int query(int v){ v += BOTTOM; int mx = 0; while(v >= 1){ mx = std::max(mx, t[v]); v >>= 1; } return mx; } }; int n, m; Tree tp, tl; std::set<int> sy[100005], sx[100005]; int good(int r, int c){ int styk = 0; int col = m-c+1; if(tp.query(r-1) >= col-1) styk = styk|1; int row = n-r+1; if(tl.query(row-1) >= c-1) styk = styk|2; return styk; } //int ciag; void placer(PII start){ std::vector<PII> stack; stack.push_back(start); //ciag--; while(SZ(stack)){ // ciag++; PII pos = stack.back(); stack.pop_back(); int r = pos.X; int c = pos.Y; //assert(r < n && c > 1); int col = m-pos.Y+1; tp.setmax(0, r, col); auto poz = sy[r+1].lower_bound(c-1); if(poz != sy[r+1].end()){ stack.push_back(MP(r+1, *poz)); //assert(sx[*poz].count(r+1)); sx[*poz].erase(r+1); sy[r+1].erase(poz); } auto pz = sx[c-1].upper_bound(r+1); if(pz != sx[c-1].begin()){ pz--; stack.push_back(MP(*pz, c-1)); //assert(sy[*pz].count(c-1)); sy[*pz].erase(c-1); sx[c-1].erase(pz); } if(SZ(stack) >= 2 && stack.back() == stack[SZ(stack)-2]) stack.pop_back(); } } void placel(PII start){ std::vector<PII> stack; stack.push_back(start); //ciag--; while(SZ(stack)){ //ciag++; PII pos = stack.back(); stack.pop_back(); int r = pos.X; int c = pos.Y; //assert(r > 1 && c < m); int row = n-pos.X+1; tl.setmax(0, row, c); auto poz = sy[r-1].upper_bound(c+1); if(poz != sy[r-1].begin()){ poz--; stack.push_back(MP(r-1, *poz)); //assert(sx[*poz].count(r-1)); sx[*poz].erase(r-1); sy[r-1].erase(poz); } auto pz = sx[c+1].lower_bound(r-1); if(pz != sx[c+1].end()){ stack.push_back(MP(*pz, c+1)); //assert(sy[*pz].count(c+1)); sy[*pz].erase(c+1); sx[c+1].erase(pz); } if(SZ(stack) >= 2 && stack.back() == stack[SZ(stack)-2]) stack.pop_back(); } } int main(){ int k; std::scanf("%d%d%d", &n, &m, &k); tp.build(n+1); tl.build(n+1); tp.setmax(0, 0, m); tl.setmax(0, 0, m); int x = 0; FOR(_, k){ int r, c, z; std::scanf("%d%d%d", &r, &c, &z); r = (r^x)%n; c = (c^x)%m; r++; c++; int styk = good(r, c); if(styk == 3){ std::printf("TAK\n"); x = x^z; }else{ std::printf("NIE\n"); if(styk == 2) placel(MP(r, c)); else if(styk == 1) placer(MP(r, c)); else{ sx[c].insert(r); sy[r].insert(c); } } } //assert(ciag <= k); //std::cerr << ciag << ", a k bylo " << k << "\n"; return 0; } |