Submission #1611241

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Source Code Expand

#include<stdio.h>
#include<vector>
#include<algorithm>
#include<string>
#include<iostream>
using namespace std;
int nxt[111111][26];
int bef[111111][26];
int main()
{
	string s;
	cin>>s;
	for(int i=0;i<26;i++)nxt[s.size()][i]=s.size();
	for(int i=s.size()-1;i>=0;i--)
	{
		for(int j=0;j<26;j++)
		{
			if(s[i]==j+'a')nxt[i][j]=i;
			else nxt[i][j]=nxt[i+1][j];
		}
	}
	for(int i=0;i<s.size();i++)
	{
		for(int j=0;j<26;j++)
		{
			if(s[i]==j+'a')bef[i+1][j]=i;
			else bef[i+1][j]=bef[i][j];
		}
	}
	int query;
	scanf("%d",&query);
	for(int p=0;p<query;p++)
	{
		string z;
		cin>>z;
		bool f=true;
		int now=0;
		for(int i=0;i<z.size();i++)
		{
			now=nxt[now][z[i]-'a'];
			if(now>=s.size())f=false;
			now++;
		}
		if(f)
		{
			int n=now;
			for(int i=z.size()-1;i>=0;i--)n=bef[n][z[i]-'a'];
			printf("%d %d\n",n+1,now);
		}
		else printf("-1\n");
	}
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:31:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d",&query);
                    ^

Judge Result