Submission #1051522

#	Time	Username	Problem	Language	Result	Execution time	Memory
1051522		nisanduu	Trains (BOI24_trains)	C++14	0 / 100	54 ms	3412 KiB

Main

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
ll mod = 1e9 + 7;

void solve(){
    ll n;
    cin>>n;
    vector<ll> d(1e5 + 10),x(1e5 + 10);
    vector<ll> dp(1e5 + 10,-1);
    for(ll i=1;i<=n;i++){
        ll a,b;
        cin>>a>>b;
        d[i]=a;
        x[i]=b;
    }
    ll ans = 0;
    vector<ll> pref(n+10,0);
    for(ll i=n;i>=1;i--){
        ll ub = min(n,i+x[i]);
        ll am = n - ub + 1;
        pref[i] = pref[i+1] - pref[ub+1] + 1;
    }
    for(ll i=1;i<=n;i++){
        cout<<pref[i]<<endl;
        ans += (pref[i] - 1);
    }
    ans++;
    cout<<ans<<endl;
}
int main()
{
    ios::sync_with_stdio(false);
    cin.tie(NULL);
    solve();

    return 0;
}

Compilation message (stderr)

Main.cpp: In function 'void solve()':
Main.cpp:21:12: warning: unused variable 'am' [-Wunused-variable]
   21 |         ll am = n - ub + 1;
      |            ^~

• Subtask 1: 0 / 8
• Subtask 2: 0 / 13
• Subtask 3: 0 / 16
• Subtask 4: 0 / 34
• Subtask 5: 0 / 29