Submission #41951530

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Source Code Expand

/*  
  hmz is the most cute girl in this world!
--------------------------------------------
  You've got to have faith
  Don't let them cut you down cut you down once more
*/
#include<bits/stdc++.h>
using namespace std;
#define TY int
#define IL inline
#define umap unordered_map
#define ull unsigned long long
#define pq priority_queue
#define mp make_pair
#define pb push_back
#define mod (TY)(1e9+7)
#define MAXN 200005
#define MAXM 200005
#define MAXK 27
#define INF (TY)(1e9)
#define block 300
#define For(i,a,b) for(TY i=(a);i<=(b);++i)
#define FOR(i,a,b) for(TY i=(a);i<(b);++i)
#define Rof(i,a,b) for(TY i=(a);i>=(b);--i)
#define ROF(i,a,b) for(TY i=(a);i>(b);--i)
IL TY qr(){
	TY x=0,f=1;char op=getchar();
	for(;op<'0'||op>'9';op=getchar())if(op=='-')f=-1;
	for(;op>='0'&&op<='9';op=getchar())x=x*10+(op^48);
	return x*f;
}IL bool ischar(char op){
	if(op>='a'&&op<='z')return true;
	if(op>='A'&&op<='Z')return true;
	return false;
}IL char getc(){
	char op=getchar();
	while(!ischar(op))op=getchar();
	return op;
}IL string qs(){
	string op="";char u=getchar();
	while(!ischar(u))u=getchar();
	while(ischar(u))op+=u,u=getchar();
	return op;
}IL void qw(TY x){
	if(!x){putchar('0');return;}
	if(x<0)putchar('-'),x=-x;
	if(x>=10)qw(x/10);putchar(x%10+'0');
}IL void qw(TY x,char op){qw(x),putchar(op);}
IL void ws(string s){FOR(i,0,s.size())putchar(s[i]);}
IL TY Ceil(TY a,TY b){return a/b+(a%b!=0);}
IL TY Mod(TY a){return (a>=mod?a-mod:a);}
IL TY Abs(TY a,TY b){return a>b?a-b:b-a;}
IL TY Pow(TY a,TY b){
	TY ans=1,base=a;
	while(b){
		if(b&1)ans=ans*base%mod;
		base=base*base%mod;b>>=1;
	}return ans;
}TY n,m,k,q,fa[MAXN];
map<TY,bool> have[MAXN];
IL TY getfa(TY now){
	if(now==fa[now])return now;
	else{
		fa[now]=getfa(fa[now]);
		return fa[now];
	}
}
int main(){
	//freopen(".in","r",stdin);
	//freopen(".out","w",stdout);
	n=qr();m=qr();
	For(i,1,n)fa[i]=i;
	For(i,1,m){
		TY u=qr(),v=qr();
		fa[getfa(u)]=getfa(v);
	}k=qr();For(i,1,k){
		TY u=qr(),v=qr();
		have[getfa(u)][getfa(v)]=have[getfa(v)][getfa(u)]=1;
	}
	/* init */
	q=qr();For(i,1,q){
		TY u=qr(),v=qr();
		if(!have[getfa(u)][getfa(v)])puts("Yes");
		else puts("No");
	}
    return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘void qw(int)’:
./Main.cpp:47:2: warning: this ‘if’ clause does not guard... [-Wmisleading-indentation]
   47 |  if(x>=10)qw(x/10);putchar(x%10+'0');
      |  ^~
./Main.cpp:47:20: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the ‘if’
   47 |  if(x>=10)qw(x/10);putchar(x%10+'0');
      |                    ^~~~~~~
./Main.cpp: In function ‘void ws(std::string)’:
./Main.cpp:23:34: warning: comparison of integer expressions of different signedness: ‘int’ and ‘std::__cxx11::basic_string<char>::size_type’ {aka ‘long unsigned int’} [-Wsign-compare]
   23 | #define FOR(i,a,b) for(TY i=(a);i<(b);++i)
      |                                  ^
./Main.cpp:49:22: note: in expansion of macro ‘FOR’
   49 | IL void ws(string s){FOR(i,0,s.size())putchar(s[i]);}
      |                      ^~~

Judge Result