제출 #276144

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
276144		AKaan37	Building Skyscrapers (CEOI19_skyscrapers)	C++17	0 / 100	407 ms	34924 KiB

skyscrapers

//Bismillahirrahmanirrahim
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#include <bits/stdc++.h>

using namespace std;

typedef long long lo;
typedef pair< lo,lo > PII;

#define fi first
#define se second
#define mp make_pair
#define endl "\n"
#define pb push_back
#define fio() ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL)
#define FOR for(int i=1;i<=n;i++)
#define mid ((start+end)/2)
#define ort ((bas+son)/2)

const lo inf = 1000000000000000000;
const lo KOK = 100000;
const lo LOG = 30;
const lo li = 200005;
const lo mod = 1000000007;

int n,m,b[li],a[li],k,flag,t,fa[li],vis[li];
int cev;
string s;
map<PII,int> mpp;
vector<int> v[li],vv;

inline int dsu(int x){
	if(x==fa[x])return x;
	return fa[x]=dsu(fa[x]);
}

inline void dfs(int node){
	if(vis[node])return;
	vis[node]=1;
	vv.pb(node);
	for(int i=0;i<(int)v[node].size();i++){
		dfs(v[node][i]);
	}
}

int main(void){
	scanf("%d %d",&n,&t);
	FOR fa[i]=i;
	FOR{
		int x,y;
		scanf("%d %d",&x,&y);
		if(mpp[{x-1,y}]){
			v[mpp[{x-1,y}]].pb(i);
			v[i].pb(mpp[{x-1,y}]);
		}
		if(mpp[{x+1,y}]){
			v[mpp[{x+1,y}]].pb(i);
			v[i].pb(mpp[{x+1,y}]);
		}
		if(mpp[{x,y-1}]){
			v[mpp[{x,y-1}]].pb(i);
			v[i].pb(mpp[{x,y-1}]);
		}
		if(mpp[{x,y+1}]){
			v[mpp[{x,y+1}]].pb(i);
			v[i].pb(mpp[{x,y+1}]);
		}
		if(mpp[{x+1,y+1}]){
			v[mpp[{x+1,y+1}]].pb(i);
			v[i].pb(mpp[{x+1,y+1}]);
		}
		if(mpp[{x-1,y+1}]){
			v[mpp[{x-1,y+1}]].pb(i);
			v[i].pb(mpp[{x-1,y+1}]);
		}
		if(mpp[{x-1,y-1}]){
			v[mpp[{x-1,y-1}]].pb(i);
			v[i].pb(mpp[{x-1,y-1}]);
		}
		if(mpp[{x+1,y-1}]){
			v[mpp[{x+1,y-1}]].pb(i);
			v[i].pb(mpp[{x+1,y-1}]);
		}
		mpp[{x,y}]=i;
	}
	dfs(1);
	FOR{
		if(vis[i]==0){printf("NO\n");return 0;}
	}
	printf("YES\n");
	for(int i=0;i<n;i++)printf("%d\n",vv[i]);
	return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

skyscrapers.cpp: In function 'int main()':
skyscrapers.cpp:50:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   50 |  scanf("%d %d",&n,&t);
      |  ~~~~~^~~~~~~~~~~~~~~
skyscrapers.cpp:54:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   54 |   scanf("%d %d",&x,&y);
      |   ~~~~~^~~~~~~~~~~~~~~

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• Subtask 2: 0 / 14
• Subtask 3: 0 / 12
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