제출 #446730

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
446730		Khizri	Awesome Arrowland Adventure (eJOI19_adventure)	C++17	22 / 100	1 ms	312 KiB

adventure

#include <bits/stdc++.h>
using namespace std;
//------------------------------DEFINE------------------------------
//******************************************************************
#define IOS ios_base::sync_with_stdio(false); cin.tie(0),cout.tie(0)
#define ll long long
#define pb push_back		 
#define F first																 
#define S second 															 
#define INF 1e18
#define all(v) (v).begin(),(v).end()
#define rall(v) (v).rbegin(),(v).rend()
#define pii pair<int,int>
#define pll pair<ll,ll>
#define OK cout<<"Ok"<<endl;
#define MOD (ll)(1e9+7)
#define endl "\n"
//******************************************************************
//----------------------------FUNCTION------------------------------
//******************************************************************
ll gcd(ll a,ll b){
	if(a>b) swap(a,b);
	if(a==0) return a+b;
	return gcd(b%a,a);
}
ll lcm(ll a,ll b){
	return a/gcd(a,b)*b;
}
bool is_prime(ll n){
	ll k=sqrt(n);
	if(n==2) return true;
	if(n<2||n%2==0||k*k==n) return false;
	for(int i=3;i<=k;i+=2){
		if(n%i==0){
			return false;
		}
	}
	return true;
}
//*****************************************************************
//--------------------------MAIN-CODE------------------------------
const int mxn=2e5+5;
int t=1,n,m;
string s;
map<char,int>mp;
int funk(char a,char b){
	if(mp[a]<=mp[b]){
		return mp[b]-mp[a];
	}
	return 4-mp[a]+mp[b];
}
void solve(){
	cin>>n>>m>>s;
	for(int i=0;i<s.size()-1;i++){
		if(s[i]=='X'){
			cout<<-1<<endl;
			return;
		}
	}
	mp['N']=0;
	mp['E']=1;
	mp['S']=2;
	mp['W']=3;
	int ans=0;
	for(int i=0;i<s.size()-1;i++){
		ans+=funk(s[i],'E');
	}
	cout<<ans<<endl;
}
int main(){
	IOS;
	//cin>>t;
	while(t--){
		solve();
	}
	return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

adventure.cpp: In function 'void solve()':
adventure.cpp:54:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   54 |  for(int i=0;i<s.size()-1;i++){
      |              ~^~~~~~~~~~~
adventure.cpp:65:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   65 |  for(int i=0;i<s.size()-1;i++){
      |              ~^~~~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 12 / 12
• Subtask 3: 0 / 12
• Subtask 4: 0 / 16
• Subtask 5: 0 / 50