oj.uz

Submission #101155

# Submission time Handle Problem Language Result Execution time Memory
101155 2019-03-17T06:52:28 Z autumn_eel Selling RNA Strands (JOI16_selling_rna) C++14
10 / 100
 1500 ms 69648 KB 
#include <bits/stdc++.h>
#define rep(i,n)for(int i=0;i<(n);i++)
#define MOD 1000000007
using namespace std;
typedef long long ll;
typedef pair<int,int>P;

struct rolling_hash{
	ll B=10007;
	vector<ll>mul,hsh;
	rolling_hash(){}
	rolling_hash(string&s){
		mul=hsh=vector<ll>(s.size()+1);
		mul[0]=1;
		for(int i=1;i<=s.size();i++){
			mul[i]=(mul[i-1]*B)%MOD;
			hsh[i]=(hsh[i-1]*B+s[i-1])%MOD;
		}
	}
	ll get(int l,int r){//[l,r)
		return (hsh[r]+MOD-hsh[l]*mul[r-l]%MOD)%MOD;
	}
};

char S[200000];
string s[200000],p[200000],q[200000];
rolling_hash rh[200000];

int main(){
	int n,m;scanf("%d%d",&n,&m);
	if(n>5000||m>5000)abort();
	rep(i,n){
		scanf("%s",S);
		s[i]=S;
		rh[i]=rolling_hash(s[i]);
	}
	rep(i,m){
		scanf("%s",S);p[i]=S;
		scanf("%s",S);q[i]=S;
		rolling_hash a(p[i]),b(q[i]);
		int cnt=0;
		rep(j,n){
			if(p[i].size()>s[j].size()||q[i].size()>s[j].size())continue;
			if(rh[j].get(0,p[i].size())==a.get(0,p[i].size())&&
				rh[j].get(s[j].size()-q[i].size(),s[j].size())==b.get(0,q[i].size()))cnt++;
		}
		printf("%d\n",cnt);
	}
}

Compilation message

selling_rna.cpp: In constructor 'rolling_hash::rolling_hash(std::__cxx11::string&)':
selling_rna.cpp:15:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int i=1;i<=s.size();i++){
               ~^~~~~~~~~~
selling_rna.cpp: In function 'int main()':
selling_rna.cpp:30:15: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  int n,m;scanf("%d%d",&n,&m);
          ~~~~~^~~~~~~~~~~~~~
selling_rna.cpp:33:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%s",S);
   ~~~~~^~~~~~~~
selling_rna.cpp:38:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%s",S);p[i]=S;
   ~~~~~^~~~~~~~
selling_rna.cpp:39:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%s",S);q[i]=S;
   ~~~~~^~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 37 ms 30072 KB Output is correct
2 Correct 32 ms 30080 KB Output is correct
3 Correct 35 ms 30080 KB Output is correct
4 Correct 32 ms 30072 KB Output is correct
5 Correct 29 ms 30080 KB Output is correct
6 Correct 29 ms 30072 KB Output is correct
7 Correct 31 ms 30080 KB Output is correct

Subtask #2
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 385 ms 69380 KB Output is correct
2 Execution timed out 1551 ms 69648 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #3
0 / 25.0

# Verdict Execution time Memory Grader output
1 Runtime error 67 ms 60024 KB Execution killed with signal 11 (could be triggered by violating memory limits)
2 Halted 0 ms 0 KB -

Subtask #4
0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 37 ms 30072 KB Output is correct
2 Correct 32 ms 30080 KB Output is correct
3 Correct 35 ms 30080 KB Output is correct
4 Correct 32 ms 30072 KB Output is correct
5 Correct 29 ms 30080 KB Output is correct
6 Correct 29 ms 30072 KB Output is correct
7 Correct 31 ms 30080 KB Output is correct
8 Correct 385 ms 69380 KB Output is correct
9 Execution timed out 1551 ms 69648 KB Time limit exceeded
10 Halted 0 ms 0 KB -