Submission #987496

#TimeUsernameProblemLanguageResultExecution timeMemory
987496activedeltorreSemafor (COI20_semafor)C++14
0 / 100
4061 ms724 KiB
#include <iostream> using namespace std; long long nr1[2300]; long long nr2[2300]; long long biti=10; long long cif(long long val) { if(val==1) { return 1; } else if(val==2) { return 6; } else if(val==3) { return 21; } else if(val==4) { return 9; } else if(val==5) { return 28; } else if(val==6) { return 18; } else if(val==7) { return 5; } else if(val==8) { return 30; } else if(val==9) { return 29; } else return 3; } long long getid(long long val) { return cif(val/10)*32+cif(val%10); } long long mod=1e9+7; long long nmax=1023; struct kuk { long long mat[105][105]; }m1,m2,m3; kuk mini; kuk mini2[65]; kuk base1,base2; kuk rasp; kuk mult(kuk a,kuk b) { int i,z,j; for(i=0;i<=10;i++) { for(j=0;j<=10;j++) { rasp.mat[i][j]=0; } } for(i=0;i<=10;i++) { for(j=0;j<=10;j++) { for(z=0;z<=10;z++) { rasp.mat[i][j]+=(a.mat[i][z]*b.mat[z][j])%mod; } } } for(i=0;i<=10;i++) { for(j=0;j<=10;j++) { rasp.mat[i][j]%=mod; } } return rasp; } long long invs(long long a,long long exp) { long long prod=1; while(exp) { if(exp%2==1) { prod=(prod*a)%mod; } exp=exp/2; a=(a*a)%mod; } return prod; } int differ(int a,int b) { return __builtin_popcount(getid(a)^getid(b)); } long long invsc[25][25]; long long precalc() { int i,j,z; for(i=1;i<=20;i++) { for(j=0;j<=i;j++) { long long prod=1; for(z=1;z<=i;z++) { prod=(prod*invs(z,mod-2))%mod; } for(z=1;z<=j;z++) { prod=(prod*z)%mod; } for(z=1;z<=i-j;z++) { prod=(prod*z)%mod; } invsc[i][j]=prod; } } } long long anticomb(int x) { return invsc[biti][x]; } kuk base; signed main() { long long n,i,j,k,l,m,st,val,z; cin>>m>>n>>k>>st; precalc(); val=getid(st); nr1[val]=1; base.mat[0][0]=1; for(i=0;i<=biti;i++) { if(i<biti) mini.mat[i][i+1]=(biti-i); if(i>=1) mini.mat[i][i-1]=i; } while(k) { if(k%2==1) { base=mult(base,mini); } mini=mult(mini,mini); k=k/2; } for(i=0;i<=99;i++) { cout<<(base.mat[0][differ(st,i)]*anticomb(differ(st,i))%mod)<<'\n'; } return 0; }

Compilation message (stderr)

semafor.cpp: In function 'long long int precalc()':
semafor.cpp:133:1: warning: no return statement in function returning non-void [-Wreturn-type]
  133 | }
      | ^
semafor.cpp: In function 'int main()':
semafor.cpp:141:19: warning: unused variable 'j' [-Wunused-variable]
  141 |     long long n,i,j,k,l,m,st,val,z;
      |                   ^
semafor.cpp:141:23: warning: unused variable 'l' [-Wunused-variable]
  141 |     long long n,i,j,k,l,m,st,val,z;
      |                       ^
semafor.cpp:141:34: warning: unused variable 'z' [-Wunused-variable]
  141 |     long long n,i,j,k,l,m,st,val,z;
      |                                  ^
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