#include <bits/stdc++.h> using namespace std; long long int powe10[19]={1,10,100,1000,10000,100000,1000000,10000000,100000000,1000000000,10000000000,100000000000,1000000000000,10000000000000,100000000000000,1000000000000000,10000000000000000,100000000000000000,1000000000000000000}; void add(short* num, int & position) { num[position]++; if(num[position]>9) { num[position]=1; position++; add(num,position); } } long long int allNum(short* num) { long long int number=0; for(int i=0;i<19;i++) { number+=num[i]*powe10[i]; } return number; } bool check(short* num,int div) { switch (div) { case 1: return true; break; case 2: if(num[0]%2==0) return true; break; case 3: { int m=0; for(int i=0;i<19;i++) { m+=num[i]; } if(m%3==0) return true; break; } case 4: if((num[0]+(num[1]*10))%4==0) return true; break; case 5: if(num[0]==5) return true; break; case 6: { int m=0; for(int i=0;i<19;i++) { m+=num[i]; } if(m%3==0 && num[0]%2==0) return true; break; } case 7: { if(allNum(num)%7==0) return true; break; } case 8: if((num[0]+(num[1]*10)+(num[2]*100))%8==0) return true; break; case 9: { int m=0; for(int i=0;i<19;i++) { m+=num[i]; } if(m%9==0) return true; break; } default: break; } return false; } int main() { ios_base::sync_with_stdio(0); cin.tie(0); long long int l,r,ans=0; cin>>l>>r; short num[19]; for(int i=0;i<18;i++) { num[i]=(l%powe10[i+1])/powe10[i]; } num[18]=l/powe10[18]; int last0; for(int i=18; i>=0;i--) { if(num[i]==0) last0=i; else break; } bool yes=true; int posit=0; bool checked[10]={false,false,false,false,false,false,false,false,false,false}; while(allNum(num)<=r) { //cout<<allNum(num)<<"\n"; for(int i=1;i<10;i++) { checked[i]=false; } posit=0; yes=true; for(int i=0;i<19;i++) { if(last0 <=i && num[i]==0) { break; } else if(num[0]==0) { yes=false; break; } if(checked[num[i]]==true) continue; if(!check(num,num[i])) { yes=false; break; } else checked[num[i]]=true; } if(yes) { ans++; //cout<<allNum(num)<<" "; } add(num,posit); } cout<<ans; 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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 | #include <bits/stdc++.h> using namespace std; long long int powe10[19]={1,10,100,1000,10000,100000,1000000,10000000,100000000,1000000000,10000000000,100000000000,1000000000000,10000000000000,100000000000000,1000000000000000,10000000000000000,100000000000000000,1000000000000000000}; void add(short* num, int & position) { num[position]++; if(num[position]>9) { num[position]=1; position++; add(num,position); } } long long int allNum(short* num) { long long int number=0; for(int i=0;i<19;i++) { number+=num[i]*powe10[i]; } return number; } bool check(short* num,int div) { switch (div) { case 1: return true; break; case 2: if(num[0]%2==0) return true; break; case 3: { int m=0; for(int i=0;i<19;i++) { m+=num[i]; } if(m%3==0) return true; break; } case 4: if((num[0]+(num[1]*10))%4==0) return true; break; case 5: if(num[0]==5) return true; break; case 6: { int m=0; for(int i=0;i<19;i++) { m+=num[i]; } if(m%3==0 && num[0]%2==0) return true; break; } case 7: { if(allNum(num)%7==0) return true; break; } case 8: if((num[0]+(num[1]*10)+(num[2]*100))%8==0) return true; break; case 9: { int m=0; for(int i=0;i<19;i++) { m+=num[i]; } if(m%9==0) return true; break; } default: break; } return false; } int main() { ios_base::sync_with_stdio(0); cin.tie(0); long long int l,r,ans=0; cin>>l>>r; short num[19]; for(int i=0;i<18;i++) { num[i]=(l%powe10[i+1])/powe10[i]; } num[18]=l/powe10[18]; int last0; for(int i=18; i>=0;i--) { if(num[i]==0) last0=i; else break; } bool yes=true; int posit=0; bool checked[10]={false,false,false,false,false,false,false,false,false,false}; while(allNum(num)<=r) { //cout<<allNum(num)<<"\n"; for(int i=1;i<10;i++) { checked[i]=false; } posit=0; yes=true; for(int i=0;i<19;i++) { if(last0 <=i && num[i]==0) { break; } else if(num[0]==0) { yes=false; break; } if(checked[num[i]]==true) continue; if(!check(num,num[i])) { yes=false; break; } else checked[num[i]]=true; } if(yes) { ans++; //cout<<allNum(num)<<" "; } add(num,posit); } cout<<ans; return 0; } |