Submission #555338

#	Time	Username	Problem	Language	Result	Execution time	Memory
555338		new_acc	Trol (COCI19_trol)	C++14	50 / 50	10 ms	432 KiB

trol

#include<bits/stdc++.h>
#define fi first
#define se second
#define pitem item*
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
typedef vector<int> vi;
typedef vector<ll> vl;
const int N=1e6+10;
const int SS=1<<19;
const int INFi=2e9;
const ll INFl=1e13;
const ll mod2=998244353;
const ll mod=1e9+7;
const ll mod3=1000696969;
const ll p=70032301;
const ull p2=913;
const int L=20;
ll dp[20][200],dp2[20][200][2],il[N];
ll sum(ll a){
    string s="";
    while(a>0){
        s+=char((a%10)+48);
        a/=10;
    }
    reverse(s.begin(),s.end());
    dp[0][0]=1;
    for(int i=1;i<s.size();i++){
        for(int sum=(i==1);sum<=i*9;sum++){
            dp[i][sum]=0;
            for(int j=(i==1);j<=min(9,sum);j++) dp[i][sum]+=dp[i-1][sum-j]; 
        }
    }
    dp2[0][0][0]=1;
    for(int i=1;i<=s.size();i++){
        for(int sum=(i==1);sum<=i*9;sum++){
            int curr=int(s[i-1])-48;
            dp2[i][sum][1]=0;
            for(int j=(i==1);j<=min(sum,9);j++){
               dp2[i][sum][1]+=dp2[i-1][sum-j][1];
               if(j<curr) dp2[i][sum][1]+=dp2[i-1][sum-j][0];
            }
            if(curr<=sum) dp2[i][sum][0]=dp2[i-1][sum-curr][0];
            else dp2[i][sum][0]=0;
        }
    }
    for(int i=1;i<s.size();i++)
        for(int j=0;j<=190;j++) il[j]+=dp[i][j];
    for(int i=0;i<=190;i++) il[i]+=dp2[s.size()][i][0]+dp2[s.size()][i][1];
    ll res=0;
    for(int i=0;i<=190;i++){
        int curr=i,pop=-1;
        while(curr!=pop){
            int curr2=curr,aktsum=0;
            while(curr2>0){
                aktsum+=curr2%10;
                curr2/=10;
            }
            pop=curr;
            curr=aktsum;
        }
        res+=il[i]*(ll)curr;
        il[i]=0;
    }
    return res;
}
void solve(){
    ll a,b;
    cin>>a>>b;
    cout<<sum(b)-sum(a-1)<<"\n";
}
int main(){
    ios_base::sync_with_stdio(0),cin.tie(0);
    int tt=1;
    cin>>tt;
    while(tt--) solve();
}

Compilation message (stderr)

trol.cpp: In function 'll sum(ll)':
trol.cpp:29:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   29 |     for(int i=1;i<s.size();i++){
      |                 ~^~~~~~~~~
trol.cpp:36:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   36 |     for(int i=1;i<=s.size();i++){
      |                 ~^~~~~~~~~~
trol.cpp:48:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   48 |     for(int i=1;i<s.size();i++)
      |                 ~^~~~~~~~~

• Subtask 1: 50 / 50