이 제출은 이전 버전의 oj.uz에서 채점하였습니다. 현재는 제출 당시와는 다른 서버에서 채점을 하기 때문에, 다시 제출하면 결과가 달라질 수도 있습니다.
#include <bits/stdc++.h>
#define pii pair<int, int>
#define f first
#define s second
#define pb push_back
#define mp make_pair
#define ll long long
#define ld long double
#define sz(v) int(v.size())
#define all(v) v.begin(), v.end()
#define vec vector<int>
#define dead not_bad
#define bad gooood
#define left not_right
#define y1 what
using namespace std;
const int N = (int) 2e5 + 10;
const int M = (int) 2e6;
const ll LINF = (ll) 2e18;
const int INF = (int) 1e9 + 7;
const int ALPHA = 26;
const int mod = INF;
const double PI = 3.14159265359;
const ld EPS = (ld) 1e-12;
const int nx[4] = {0, 0, -1, 1};
const int ny[4] = {1, -1, 0, 0};
ll solve(vec a, vec b) {
int n = sz(a);
vec x_arr;
for (auto it : a) {
x_arr.pb(it);
}
for (auto it : b) {
x_arr.pb(it);
}
ll ans = LINF;
for (auto x : x_arr) {
ll cur = 0;
for (int i = 0; i < n; i++) {
if (a[i] <= x && x <= b[i]) {
cur += b[i] - a[i];
} else if (a[i] > x) {
cur += a[i] + b[i] - 2 * x;
} else if (b[i] < x) {
cur += 2 * x - (a[i] + b[i]);
} else {
assert(0);
}
}
ans = min(ans, cur);
}
return ans + n;
}
int k, n;
int main() {
int nn;
ll ans = 0;
cin >> k >> nn;
assert(k == 1);
vec A, B;
for (int i = 1; i <= nn; i++) {
char ta, tb;
int x1, x2;
cin >> ta >> x1 >> tb >> x2;
//cout << ta << ' ' << x1 << ' ' << tb << ' ' << x2 << endl;
if (x1 > x2)
swap(x1, x2);
if (ta == tb) {
ans += (x2 - x1);
} else {
A.pb(x1);
B.pb(x2);
}
}
cout << ans + solve(A, B);
return 0;
}
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