oj.uz

Submission #122355

# Submission time Handle Problem Language Result Execution time Memory
122355 2019-06-28T05:27:12 Z bekzhan29 Palindromic Partitions (CEOI17_palindromic) C++14
100 / 100
 90 ms 26788 KB 
#include <bits/stdc++.h>
#include <iostream>
#include <algorithm>
#include <vector>
#include <map>
#include <unordered_map>
#include <set>
#include <queue>
using namespace std;
#define pb push_back
#define mp make_pair
#define INF 1e9
#define mod 1000000007
#define eps 1e-6
#define abs(x) ((x)>=0?(x):-(x))
#define y1 solai
#define fi first
#define se second
typedef long long ll;
void read(ll &x)
{
	scanf("%lld",&x);
}
void read(ll &x, ll &y)
{
	scanf("%lld%lld",&x,&y);
}
void read(ll &x, ll &y, ll &z)
{
	scanf("%lld%lld%lld",&x,&y,&z);
}
void print(ll x)
{
	printf("%lld ",x);
}
void println(ll x)
{
	printf("%lld\n",x);
}
const ll N=1000100;
ll t,n,ans,p[N],h[N],l,r,len;
char s[N];
int main()
{
	cin>>t;
	p[0]=1;
	for(ll i=1;i<N;i++)
		p[i]=p[i-1]*197;
	for(;t--;)
	{
		scanf("\n%s",s);
		n=strlen(s);
		for(ll i=1;i<=n;i++)
			h[i]=h[i-1]+s[i-1]*p[i];
		l=1,r=n;
		ans=0;
		for(ll i=1;i<=n/2;i++)
		{
			len=i-l+1;
			if((h[i]-h[l-1])*p[r-i]==h[r]-h[r-len])
			{
				ans+=2;
				l+=len;
				r-=len;
			}
		}
		if(l<=r)
			ans++;
		println(ans);
	}
}

Compilation message

palindromic.cpp: In function 'void read(ll&)':
palindromic.cpp:22:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%lld",&x);
  ~~~~~^~~~~~~~~~~
palindromic.cpp: In function 'void read(ll&, ll&)':
palindromic.cpp:26:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%lld%lld",&x,&y);
  ~~~~~^~~~~~~~~~~~~~~~~~
palindromic.cpp: In function 'void read(ll&, ll&, ll&)':
palindromic.cpp:30:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%lld%lld%lld",&x,&y,&z);
  ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
palindromic.cpp: In function 'int main()':
palindromic.cpp:51:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("\n%s",s);
   ~~~~~^~~~~~~~~~

Subtask #1
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 8192 KB Output is correct
2 Correct 8 ms 8192 KB Output is correct
3 Correct 9 ms 8192 KB Output is correct
4 Correct 8 ms 8192 KB Output is correct
5 Correct 8 ms 8192 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 8192 KB Output is correct
2 Correct 8 ms 8192 KB Output is correct
3 Correct 9 ms 8192 KB Output is correct
4 Correct 8 ms 8192 KB Output is correct
5 Correct 8 ms 8192 KB Output is correct
6 Correct 9 ms 8192 KB Output is correct
7 Correct 9 ms 8192 KB Output is correct
8 Correct 9 ms 8192 KB Output is correct
9 Correct 8 ms 8192 KB Output is correct

Subtask #3
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 8192 KB Output is correct
2 Correct 8 ms 8192 KB Output is correct
3 Correct 9 ms 8192 KB Output is correct
4 Correct 8 ms 8192 KB Output is correct
5 Correct 8 ms 8192 KB Output is correct
6 Correct 9 ms 8192 KB Output is correct
7 Correct 9 ms 8192 KB Output is correct
8 Correct 9 ms 8192 KB Output is correct
9 Correct 8 ms 8192 KB Output is correct
10 Correct 9 ms 8320 KB Output is correct
11 Correct 10 ms 8320 KB Output is correct
12 Correct 9 ms 8320 KB Output is correct
13 Correct 9 ms 8320 KB Output is correct

Subtask #4
40.0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 8192 KB Output is correct
2 Correct 8 ms 8192 KB Output is correct
3 Correct 9 ms 8192 KB Output is correct
4 Correct 8 ms 8192 KB Output is correct
5 Correct 8 ms 8192 KB Output is correct
6 Correct 9 ms 8192 KB Output is correct
7 Correct 9 ms 8192 KB Output is correct
8 Correct 9 ms 8192 KB Output is correct
9 Correct 8 ms 8192 KB Output is correct
10 Correct 9 ms 8320 KB Output is correct
11 Correct 10 ms 8320 KB Output is correct
12 Correct 9 ms 8320 KB Output is correct
13 Correct 9 ms 8320 KB Output is correct
14 Correct 89 ms 26788 KB Output is correct
15 Correct 52 ms 22108 KB Output is correct
16 Correct 90 ms 26232 KB Output is correct
17 Correct 47 ms 17916 KB Output is correct