이 제출은 이전 버전의 oj.uz에서 채점하였습니다. 현재는 제출 당시와는 다른 서버에서 채점을 하기 때문에, 다시 제출하면 결과가 달라질 수도 있습니다.
#define _CRT_SECURE_NO_WARNINGS
#include <iostream>
#include <string>
#include <algorithm>
#include <cstring>
#include <cstdio>
#include <sstream>
#include <map>
#include <stack>
#include <set>
#include <queue>
#include <list>
#include <unordered_set>
#include <unordered_map>
#include <math.h>
#include <bitset>
#include <cmath>
#include <vector>
#include <iomanip>
#include <random>
#include <chrono>
#include <cassert>
using namespace std;
#define ll long long
#define fr first
#define sc second
#define pb push_back
#define US freopen(".in", "r", stdin); freopen("j.out", "w", stdout);
ll gcd(ll a, ll b)
{
if (a == 0 || b == 0) {
return max(a, b);
}
if (a <= b) {
return gcd(a, b % a);
}
else {
return gcd(a % b, b);
}
}
ll lcm(ll a, ll b) {
return (a / gcd(a, b)) * b;
}
const int N = 300005;
const ll oo = 100000000000000000, MOD = 1000000007;
struct NODE {
int x, y, x1, y1;
char d;
};
NODE a[N], ner[N];
bool ok[N];
void solve() {
int n;
cin >> n;
int mx = 0;
for (int i = 1; i <= n; ++i) {
char c;
cin >> a[i].x >> a[i].y >> a[i].d;
if (a[i].d == 'N') {
a[i].x1 = 0;
a[i].y1 = -1;
}
if (a[i].d == 'S') {
a[i].x1 = 0;
a[i].y1 = 1;
}
if (a[i].d == 'W') {
a[i].x1 = -1, a[i].y1 = 0;
}
if (a[i].d == 'E') {
a[i].x1 = 1, a[i].y1 = 0;
}
ner[i] = a[i];
mx = max(mx, a[i].x);
mx = max(mx, a[i].y);
}
for (int i = 0; i <= mx; ++i) {
vector<pair<int, pair<int, int>>> vec;
for (int j = 1; j <= n; ++j) {
if (ok[j] != 1) {
ner[j].x += a[j].x1;
ner[j].y += a[j].y1;
if (ner[j].x <= mx && ner[j].x>=0 && ner[j].y <= mx && ner[j].y>=0) {
vec.pb({ ner[j].x,{ner[j].y,j} });
}
}
}
if (vec.size() <= 1) {
break;
}
sort(vec.begin(), vec.end());
for (int j = 0; j < vec.size(); ++j) {
if (j < vec.size()-1) {
if (vec[j].fr == vec[j + 1].fr && vec[j].sc.fr == vec[j + 1].sc.fr) {
ok[vec[j].sc.sc] = 1;
}
}
if (j > 0) {
if (vec[j-1].fr == vec[j].fr && vec[j-1].sc.fr == vec[j].sc.fr) {
ok[vec[j].sc.sc] = 1;
}
}
}
}
for (int i = 1; i <= n; ++i) {
if (ok[i] != 1) {
cout << i << endl;
}
}
}
int main() {
ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL);
//US
int tt = 1;
//cin >> tt;
while (tt--) {
solve();
}
}
컴파일 시 표준 에러 (stderr) 메시지
Main.cpp: In function 'void solve()':
Main.cpp:65:14: warning: unused variable 'c' [-Wunused-variable]
65 | char c;
| ^
Main.cpp:100:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, std::pair<int, int> > >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
100 | for (int j = 0; j < vec.size(); ++j) {
| ~~^~~~~~~~~~~~
Main.cpp:101:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, std::pair<int, int> > >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
101 | if (j < vec.size()-1) {
| ~~^~~~~~~~~~~~~~
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