oj.uz

Submission #845423

# Submission time Handle Problem Language Result Execution time Memory
845423 2023-09-06T13:33:12 Z vjudge1 Trener (COCI20_trener) C++17
55 / 110
 2000 ms 9032 KB 
#include <iostream>
#include <bits/stdc++.h>
using namespace std;
#define MOD 1000000007
#define ll long long
#define pri pair<int,int>
#define prl pair<ll,ll>
#define vi vector<int>
#define vl vector<ll>
#define vp vector<pair<int,int>>
#define vpl vector<pair<ll,ll>>
#define re return 0
#define sqrt sqrtl

struct node {
    string val;
    vector<int> adj; //asagi
    ll ds = 0;
};

int insides(string s1, string s2) {
    if (s1[0]!=s2[0] && s1[1]!=s2[0]) return 0;
    int flag = 1;
    for (int i = 1;i<s1.size();i++) {
        if (s1[i]!=s2[i-1]) {flag=0;break;}
    }
    if (flag) return 1;
    flag=1;
    for (int i = 1;i<s1.size();i++) {
        if (s1[i-1]!=s2[i-1]) {flag=0;break;}
    }
    if (flag) return 1;
    return 0;
}

int32_t main() {
    int n,k;cin>>n>>k;
    vector<node> nodes(n*k);

    for (int i = 0;i<n;i++) {
        for (int j = 0;j<k;j++) {
            string s1;cin>>s1;nodes[i*k+j].val=s1;
        }
    }
    for (int i = n-1;i>-1;i--){
        for (int j = 0;j<k;j++) {
            if (i==n-1) {nodes[i*k+j].ds=1;continue;}
            nodes[i*k+j].ds=0;
            for (int x = 0;x<k;x++) {
                int st = insides(nodes[(i+1)*k+x].val,nodes[i*k+j].val);
                if (st) {
                    nodes[(i+1)*k+x].adj.push_back(i*k+j);
                    nodes[i*k+j].ds+=nodes[(i+1)*k+x].ds;
                    nodes[i*k+j].ds%=MOD;
                }
            }
        }
    }


    ll t = 0;
    for (int i = 0;i<k;i++){
        t+=nodes[i].ds;
        t%=MOD;
    } cout<<t%MOD<<endl; 

    /* for (int  i = 0;i<n*k;i++) {
        cout<<nodes[i].val<<" "<<nodes[i].ds<<" "<<nodes[i].adj.size()<<endl;
    } */
    return 0;
}

Compilation message

trener.cpp: In function 'int insides(std::string, std::string)':
trener.cpp:24:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   24 |     for (int i = 1;i<s1.size();i++) {
      |                    ~^~~~~~~~~~
trener.cpp:29:21: 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<s1.size();i++) {
      |                    ~^~~~~~~~~~

Subtask #1
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 344 KB Output is correct

Subtask #2
33.0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 21 ms 856 KB Output is correct
2 Correct 20 ms 856 KB Output is correct
3 Correct 20 ms 860 KB Output is correct
4 Correct 32 ms 3408 KB Output is correct
5 Correct 36 ms 1104 KB Output is correct
6 Correct 28 ms 1104 KB Output is correct
7 Correct 32 ms 3408 KB Output is correct

Subtask #3
0 / 55.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 21 ms 856 KB Output is correct
6 Correct 20 ms 856 KB Output is correct
7 Correct 20 ms 860 KB Output is correct
8 Correct 32 ms 3408 KB Output is correct
9 Correct 36 ms 1104 KB Output is correct
10 Correct 28 ms 1104 KB Output is correct
11 Correct 32 ms 3408 KB Output is correct
12 Execution timed out 2035 ms 9032 KB Time limit exceeded
13 Halted 0 ms 0 KB -