Submission #447489

#	Time	Username	Problem	Language	Result	Execution time	Memory
447489		Khizri	Palindromic Partitions (CEOI17_palindromic)	C++17	0 / 100	1 ms	1228 KiB

palindromic

#include <bits/stdc++.h>
using namespace std;
//------------------------------DEFINE------------------------------
//******************************************************************
#define IOS ios_base::sync_with_stdio(false); cin.tie(0),cout.tie(0)
#define ll long long
#define pb push_back		 
#define F first																 
#define S second 															 
#define INF 1e18
#define all(v) (v).begin(),(v).end()
#define rall(v) (v).rbegin(),(v).rend()
#define pii pair<int,int>
#define pll pair<ll,ll>
#define OK cout<<"Ok"<<endl;
#define MOD (ll)(1e9+7)
#define endl "\n"
//******************************************************************
//----------------------------FUNCTION------------------------------
//******************************************************************
ll gcd(ll a,ll b){
	if(a>b) swap(a,b);
	if(a==0) return a+b;
	return gcd(b%a,a);
}
ll lcm(ll a,ll b){
	return a/gcd(a,b)*b;
}
bool is_prime(ll n){
	ll k=n;
	if(n==2) return true;
	if(n<2||n%2==0||k*k==n) return false;
	for(int i=3;i<=k;i+=2){
		if(n%i==0){
			return false;
		}
	}
	return true;
}
//*****************************************************************
//--------------------------MAIN-CODE------------------------------
const int mxn=1e6+5;
int t=1,ans;
map<string,int>mp;
void solve(){
	char s[mxn];
	scanf("%s",&s);
	int l=0,r=strlen(s)-1;
	string a="",b="";
	ans=0;
	while(l<r){
		a+=s[l];
		b=s[r]+b;
		mp[a]++;
		mp[b]++;
		if(mp[a]==2){
			ans+=2;
			a="";
			b="";
			mp.clear();
		}
		l++,r--;
	}
	if(a.size()||b.size()||l==r){
		ans++;
	}
	printf("%d\n",ans);
}
int main(){
	//IOS;
	scanf("%d",&t);
	while(t--){
		solve();
	}
	return 0;
}

Compilation message (stderr)

palindromic.cpp: In function 'void solve()':
palindromic.cpp:47:10: warning: format '%s' expects argument of type 'char*', but argument 2 has type 'char (*)[1000005]' [-Wformat=]
   47 |  scanf("%s",&s);
      |         ~^  ~~
      |          |  |
      |          |  char (*)[1000005]
      |          char*
palindromic.cpp:47:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   47 |  scanf("%s",&s);
      |  ~~~~~^~~~~~~~~
palindromic.cpp: In function 'int main()':
palindromic.cpp:71:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   71 |  scanf("%d",&t);
      |  ~~~~~^~~~~~~~~

• Subtask 1: 0 / 15
• Subtask 2: 0 / 20
• Subtask 3: 0 / 25
• Subtask 4: 0 / 40