#include<cstdio> #include<algorithm> #include<set> using namespace std; const int N=100010,M=262150; int n,m,_,x,y,z,last,pos[N],mi[M],ma[M]; int q[5555555][2],h,t; set<int>row[N],col[N]; inline void read(int&a){char c;while(!(((c=getchar())>='0')&&(c<='9')));a=c-'0';while(((c=getchar())>='0')&&(c<='9'))(a*=10)+=c-'0';} inline void umin(int&a,int b){a>b?(a=b):0;} inline void umax(int&a,int b){a<b?(a=b):0;} void build(int x,int a,int b){ if(a==b){ pos[a]=x; mi[x]=n+1; ma[x]=0; if(a==0)mi[x]=0; if(a==m+1)ma[x]=n+1; return; } int mid=(a+b)>>1; build(x<<1,a,mid),build(x<<1|1,mid+1,b); mi[x]=min(mi[x<<1],mi[x<<1|1]); ma[x]=max(ma[x<<1],ma[x<<1|1]); } int askmin(int x,int a,int b,int c,int d){ if(c<=a&&b<=d)return mi[x]; int mid=(a+b)>>1,t=N; if(c<=mid)t=askmin(x<<1,a,mid,c,d); if(d>mid)umin(t,askmin(x<<1|1,mid+1,b,c,d)); return t; } int askmax(int x,int a,int b,int c,int d){ if(c<=a&&b<=d)return ma[x]; int mid=(a+b)>>1,t=0; if(c<=mid)t=askmax(x<<1,a,mid,c,d); if(d>mid)umax(t,askmax(x<<1|1,mid+1,b,c,d)); return t; } inline void changemin(int x,int p){for(x=pos[x];x;x>>=1)umin(mi[x],p);} inline void changemax(int x,int p){for(x=pos[x];x;x>>=1)umax(ma[x],p);} inline int checkS(int y,int x){//-1 inside 0 border 1 not int t=askmin(1,0,m+1,x,m+1); //printf(" t=%d\n",t); if(t<=y)return -1; if(t==y+1||askmin(1,0,m+1,x-1,m+1)<=y+1)return 0; return 1; } inline int checkT(int y,int x){//-1 inside 0 border 1 not int t=askmax(1,0,m+1,0,x); if(t>=y)return -1; if(t==y-1||askmax(1,0,m+1,0,x+1)>=y-1)return 0; return 1; } inline void extS(int x,int y){ q[h=t=1][0]=x; q[1][1]=y; while(h<=t){ x=q[h][0]; y=q[h++][1]; changemin(y,x); //printf("extS %d %d\n",x,y); while(row[x-1].size()){ set<int>::iterator it=row[x-1].begin(); if((*it)<=y+1){ q[++t][0]=x-1; q[t][1]=*it; row[x-1].erase(*it); }else break; } while(col[y+1].size()){ set<int>::reverse_iterator it=col[y+1].rbegin(); if((*it)>=x-1){ q[++t][0]=*it; q[t][1]=y+1; col[y+1].erase(*it); }else break; } } } inline void extT(int x,int y){ q[h=t=1][0]=x; q[1][1]=y; while(h<=t){ x=q[h][0]; y=q[h++][1]; //printf("extT %d %d\n",x,y); changemax(y,x); while(row[x+1].size()){ set<int>::reverse_iterator it=row[x+1].rbegin(); if((*it)>=y-1){ q[++t][0]=x+1; q[t][1]=*it; row[x+1].erase(*it); }else break; } while(col[y-1].size()){ set<int>::iterator it=col[y-1].begin(); if((*it)<=x+1){ q[++t][0]=*it; q[t][1]=y-1; col[y-1].erase(*it); }else break; } } } inline bool merge(int x,int y){ x++,y++; //printf("-> %d %d\n",x,y); if(x==1&&y==1)return 1; if(x==n&&y==m)return 1; int A=checkS(x,y); //printf("A=%d\n",A); if(A<0)return 0; int B=checkT(x,y); //printf("B=%d\n",B); if(B<0)return 0; if(A==0&&B==0)return 1; if(A==1&&B==1){ row[x].insert(y); col[y].insert(x); } if(A==0)extS(x,y); if(B==0)extT(x,y); return 0; } int main(){ read(n),read(m),read(_); build(1,0,m+1); while(_--){ read(x),read(y),read(z); x=(x^last)%n; y=(y^last)%m; if(merge(x,y))puts("TAK"),last^=z;else puts("NIE"); } }
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 | #include<cstdio> #include<algorithm> #include<set> using namespace std; const int N=100010,M=262150; int n,m,_,x,y,z,last,pos[N],mi[M],ma[M]; int q[5555555][2],h,t; set<int>row[N],col[N]; inline void read(int&a){char c;while(!(((c=getchar())>='0')&&(c<='9')));a=c-'0';while(((c=getchar())>='0')&&(c<='9'))(a*=10)+=c-'0';} inline void umin(int&a,int b){a>b?(a=b):0;} inline void umax(int&a,int b){a<b?(a=b):0;} void build(int x,int a,int b){ if(a==b){ pos[a]=x; mi[x]=n+1; ma[x]=0; if(a==0)mi[x]=0; if(a==m+1)ma[x]=n+1; return; } int mid=(a+b)>>1; build(x<<1,a,mid),build(x<<1|1,mid+1,b); mi[x]=min(mi[x<<1],mi[x<<1|1]); ma[x]=max(ma[x<<1],ma[x<<1|1]); } int askmin(int x,int a,int b,int c,int d){ if(c<=a&&b<=d)return mi[x]; int mid=(a+b)>>1,t=N; if(c<=mid)t=askmin(x<<1,a,mid,c,d); if(d>mid)umin(t,askmin(x<<1|1,mid+1,b,c,d)); return t; } int askmax(int x,int a,int b,int c,int d){ if(c<=a&&b<=d)return ma[x]; int mid=(a+b)>>1,t=0; if(c<=mid)t=askmax(x<<1,a,mid,c,d); if(d>mid)umax(t,askmax(x<<1|1,mid+1,b,c,d)); return t; } inline void changemin(int x,int p){for(x=pos[x];x;x>>=1)umin(mi[x],p);} inline void changemax(int x,int p){for(x=pos[x];x;x>>=1)umax(ma[x],p);} inline int checkS(int y,int x){//-1 inside 0 border 1 not int t=askmin(1,0,m+1,x,m+1); //printf(" t=%d\n",t); if(t<=y)return -1; if(t==y+1||askmin(1,0,m+1,x-1,m+1)<=y+1)return 0; return 1; } inline int checkT(int y,int x){//-1 inside 0 border 1 not int t=askmax(1,0,m+1,0,x); if(t>=y)return -1; if(t==y-1||askmax(1,0,m+1,0,x+1)>=y-1)return 0; return 1; } inline void extS(int x,int y){ q[h=t=1][0]=x; q[1][1]=y; while(h<=t){ x=q[h][0]; y=q[h++][1]; changemin(y,x); //printf("extS %d %d\n",x,y); while(row[x-1].size()){ set<int>::iterator it=row[x-1].begin(); if((*it)<=y+1){ q[++t][0]=x-1; q[t][1]=*it; row[x-1].erase(*it); }else break; } while(col[y+1].size()){ set<int>::reverse_iterator it=col[y+1].rbegin(); if((*it)>=x-1){ q[++t][0]=*it; q[t][1]=y+1; col[y+1].erase(*it); }else break; } } } inline void extT(int x,int y){ q[h=t=1][0]=x; q[1][1]=y; while(h<=t){ x=q[h][0]; y=q[h++][1]; //printf("extT %d %d\n",x,y); changemax(y,x); while(row[x+1].size()){ set<int>::reverse_iterator it=row[x+1].rbegin(); if((*it)>=y-1){ q[++t][0]=x+1; q[t][1]=*it; row[x+1].erase(*it); }else break; } while(col[y-1].size()){ set<int>::iterator it=col[y-1].begin(); if((*it)<=x+1){ q[++t][0]=*it; q[t][1]=y-1; col[y-1].erase(*it); }else break; } } } inline bool merge(int x,int y){ x++,y++; //printf("-> %d %d\n",x,y); if(x==1&&y==1)return 1; if(x==n&&y==m)return 1; int A=checkS(x,y); //printf("A=%d\n",A); if(A<0)return 0; int B=checkT(x,y); //printf("B=%d\n",B); if(B<0)return 0; if(A==0&&B==0)return 1; if(A==1&&B==1){ row[x].insert(y); col[y].insert(x); } if(A==0)extS(x,y); if(B==0)extT(x,y); return 0; } int main(){ read(n),read(m),read(_); build(1,0,m+1); while(_--){ read(x),read(y),read(z); x=(x^last)%n; y=(y^last)%m; if(merge(x,y))puts("TAK"),last^=z;else puts("NIE"); } } |