Submission #862222

#	Time	Username	Problem	Language	Result	Execution time	Memory
862222		Ahmed_Solyman	Set (COCI21_set)	C++14	40 / 110	1063 ms	65256 KiB

Main

/*
In the name of Allah
made by: Ahmed_Solyman
*/
#include <bits/stdc++.h>
#include <ext/rope>
 
using namespace std;
using namespace __gnu_cxx;
#pragma GCC optimize("-Ofast")
#pragma GCC optimize("-O1")
//-------------------------------------------------------------//
typedef long long ll;
typedef unsigned long long ull;
#define fast ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
#define PI acos(-1)
#define lb lower_bound
#define ub upper_bound
#define endl '\n'
#define all(v) v.begin(),v.end()
#define allr(v) v.rbegin(),v.rend()
#define sum_to(n) (n*(n+1))/2
#define pb push_back
#define pf push_front
#define fil(arr,x) memset(arr,x,sizeof(arr))
const ll mod=1e9+7;
int dx[8]={0,1,0,-1,1,1,-1,-1};
int dy[8]={1,0,-1,0,1,-1,-1,1};
//-------------------------------------------------------------//
ll lcm(ll a,ll b)
{
    return (max(a,b)/__gcd(a,b))*min(a,b);
}
void person_bool(bool x)
{
    cout<<(x?"YES":"NO")<<endl;
}
void run(){
    #ifndef ONLINE_JUDGE
    freopen("input.in", "r", stdin);
    freopen("output.out", "w", stdout);
    #endif
}
int main()
{
    //freopen("input.txt","r",stdin);
    //freopen("output.txt","w",stdout);
    fast
    //run();
    int n,m;cin>>n>>m;
    vector<string>v(n);
    for(auto &i:v)cin>>i;
    ll ans=0;
   	for(int i=0;i<n;i++){
   		unordered_map<string,int>fr;
   		for(int j=i+1;j<n;j++)fr[v[j]]++;
   		for(int j=i+1;j<n;j++){
   			fr[v[j]]--;
   			string s="";
   			for(int k=0;k<m;k++){
   				if(v[i][k]==v[j][k]){
   					s+=v[i][k];
   				}
   				else{
   					s+=('1'+'2'+'3')-(v[i][k]+v[j][k]);
   				}
   			}
   			ans+=fr[s];
   		}
   	}
   	cout<<ans<<endl;
    return 0;
}

Compilation message (stderr)

Main.cpp: In function 'void run()':
Main.cpp:40:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   40 |     freopen("input.in", "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
Main.cpp:41:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   41 |     freopen("output.out", "w", stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 30 / 30
• Subtask 3: 0 / 70