Submission #1110202

#	Time	Username	Problem	Language	Result	Execution time	Memory
1110202		vjudge1	Ski 2 (JOI24_ski2)	C++17	0 / 100	1 ms	336 KiB

Main

#include<bits/stdc++.h>
#define INF 1e18
#define fi first
#define se second
#define FOR(i, k, n) for(ll i = k; i <= n; i++)
#define FOR1(i, k, n) for(ll i = k; i >= n; i--)
#define pb push_back
#define fastio ios::sync_with_stdio(0); cin.tie(0); cout.tie(0)
#define vi vector<int>
#define pii pair<int, int>
#define vii vector<pii>
#define ll long long
#define vll vector<ll>
#define pll pair<ll, ll>
#define re return 0
#define mii map<int, int>
#define input "BESIEGE.inp"
#define output "BESIEGE.out"
#define rf 	freopen(input, "r", stdin); freopen(output, "w", stdout)
using namespace std;
const int maxn = 1e5 + 5;
const int mod = 1e9 + 7;
const int base = 998244353;
void add(int &a, int b) 
{
	a += b; 
	if(a >= mod) a -= mod; 
	if(a < 0) a += mod; 
}
pii a[maxn];
bool vis[maxn];
int main()
{
	fastio;
	int n, k;
	cin >> n >> k;
	FOR(i, 1, n)
		cin >> a[i].fi >> a[i].se;
	if(n == 1)
	{
		cout << 0;
		re;
	}
	ll ans = 0;
	sort(a + 1, a + 1 + n);
	FOR(i, 2, n)
		if(a[i].fi == a[1].fi)
			ans += k, a[i].fi++;
	int cnt = 0;
	while(cnt < n - 1)
	{
		int id;
		FOR(i, 2, n)
			if(!vis[i])
			{
				id = i;
				break;
			}
		vis[id] = 1;
		cnt++;
		ans += a[1].se;
		int truoc = a[id].fi;
		FOR(i, id + 1, n)
		{
			if(!vis[i] && a[i].fi > truoc)
			{
				truoc = a[i].fi;
				vis[i] = 1;
				cnt++;
			}
		}
	}
	cout << ans - a[1].se;
	re;
}

Compilation message (stderr)

Main.cpp: In function 'int main()':
Main.cpp:59:11: warning: 'id' may be used uninitialized in this function [-Wmaybe-uninitialized]
   59 |   vis[id] = 1;
      |   ~~~~~~~~^~~

• Subtask 1: 0 / 5
• Subtask 2: 0 / 12
• Subtask 3: 0 / 9
• Subtask 4: 0 / 33
• Subtask 5: 0 / 27
• Subtask 6: 0 / 14