Submission #71107

#	Time	Username	Problem	Language	Result	Execution time	Memory
71107		khohko	구간 성분 (KOI15_interval)	C++17	7 / 100	1077 ms	65344 KiB

interval

#include <bits/stdc++.h>
#pragma GCC optimize("O3")
using namespace std;
#define ll long long
#define pb push_back
#define fr first
#define sc second
#define MAX ((ll)(1e12+100))
#define MX ((ll)(1e6+100))
#define ARRS ((ll)(2e6+100))
#define HS ((ll)(233))
#define MOD ((ll)(1e9+7))
#define EP ((double)(1e-9))
#define LG 21
#define mul(a,b) a=((a)*(b))%MOD
using namespace std;

string s,t;

ll pw[ARRS];
unordered_map<ll,ll> mp;

int main(){
	#ifdef KHOKHO
		freopen("in.in","r",stdin);
		freopen("out.out","w",stdout);
	#endif
	cin>>s>>t;
	pw[0]=1;
	for(int i=1; i<500; i++)pw[i]=(pw[i-1]*HS)%MOD;
	ll pas=0;
	for(int i=0; i<s.size(); i++){
		ll hs=0;
		for(int j=i; j<s.size(); j++){
			hs+=pw[s[j]];
			if(hs>MOD)
				hs-=MOD;
			mp[hs]=j-i+1;
		}
	}
	for(int i=0; i<t.size(); i++){
		ll hs=0;
		for(int j=i; j<t.size(); j++){
			hs+=pw[t[j]];
			if(hs>MOD)
				hs-=MOD;
			pas=max(pas,mp[hs]);
		}
	}
	cout<<pas;


}

Compilation message (stderr)

interval.cpp: In function 'int main()':
interval.cpp:32:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i=0; i<s.size(); i++){
               ~^~~~~~~~~
interval.cpp:34:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int j=i; j<s.size(); j++){
                ~^~~~~~~~~
interval.cpp:35:15: warning: array subscript has type 'char' [-Wchar-subscripts]
    hs+=pw[s[j]];
               ^
interval.cpp:41:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i=0; i<t.size(); i++){
               ~^~~~~~~~~
interval.cpp:43:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int j=i; j<t.size(); j++){
                ~^~~~~~~~~
interval.cpp:44:15: warning: array subscript has type 'char' [-Wchar-subscripts]
    hs+=pw[t[j]];
               ^

• Subtask 1: 7 / 7
• Subtask 2: 0 / 23
• Subtask 3: 0 / 31
• Subtask 4: 0 / 39