#include<iostream>
#include<cstdio>
#include<cstring>
#include<cctype>
using namespace std;

char s[10000001],word[101];
int sum,j;
bool bk=false;
int first=-1;

int main(){
	
	scanf("%s",word);
	getchar();
	gets(s);
	
	int slen=strlen(s);
	int wlen=strlen(word);
	s[slen+1]=' ';
	
	for(int i=0;i<slen;i++) s[i]=tolower(s[i]);
	for(int i=0;i<wlen;i++) word[i]=tolower(word[i]);
	
	for(int i=0;i<slen;i++)
	{
		if(i==0 || s[i-1]==' ')
		{
			for(j=0;j<wlen;j++)
			{
				if(s[i+j]!=word[j]) break;
				else continue;
			}
		}
		else continue;
		if((j==wlen && s[i+j]==' ') || (j==wlen && (i+j)==slen))
		{
			if(!bk) bk=true,first=i;
			sum+=1;
		}
	}
	if(sum!=0 && first!=-1){printf("%d %d",sum,first);}
	else puts("-1");
	return 0;
} 

测评姬如此说道:

/tmp/compiler_57s9y9qt/src: 在函数‘int main()’中:
/tmp/compiler_57s9y9qt/src:16:2: 错误：‘gets’ was not declared in this scope; did you mean ‘fgets’?
   16 |  gets(s);
      |  ^~~~
      |  fgets

试了好几遍都没用！求助！