Submission #893940

#	Time	Username	Problem	Language	Result	Execution time	Memory
893940		Baizho	Meteors (POI11_met)	C++14	74 / 100	385 ms	65536 KiB

met

#include <bits/stdc++.h>
using namespace std;
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;
  
#define ordered_set tree<int, null_type,less<int>, rb_tree_tag,tree_order_statistics_node_update>
 
// #pragma GCC optimize("Ofast,unroll-loops,fast-math")
// #pragma GCC target("popcnt")
#pragma GCC target("avx2")
#pragma GCC optimize("Ofast")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")

typedef long long ll;
typedef unsigned long long ull;
typedef long double ld;
typedef pair<ll,ll> pll;
 
#define sz size()
#define ff first
#define ss second
#define all(a) a.begin(),a.end()
#define pb push_back

const int mod = ll(1e9)+7; //(b + (a%b)) % b (to mod -1%(10^9+7) correctly in c++ its -1 but its suppose to be 10^9+6
const ll MOD = 998244353;  // (a%mod)*(binpow(b,mod-2,mod) = (a/b)%mod
const int N = ll(5e5)+100;
const long long inf = 2e18;
const long double eps = 1e-15L;
 
ll lcm(ll a, ll b) { return (a / __gcd(a,b))*b; }

ll binpow(ll a, ll b, ll m) { ll res=1; a %= m; while(b>0){ if(b&1)res=(res * a) % m; a=(a * a) % m; b/=2; } return res%m;}


void Freopen(string Key){ freopen((Key+".in").c_str(), "r", stdin); freopen((Key+".out").c_str(), "w", stdout); }


ll n, m, o[N], need[N], k, ql[N], qr[N], qa[N], bl[N], br[N];
vector<ll> check[N];
vector<ll> pos[N];

ll t[N * 4];
 
ll get(ll l, ll r, ll v = 1, ll tl = 1, ll tr = m) {
    if(l <= tl && tr <= r) return t[v];
    if(tr < l || r < tl) return 0;
    ll tm = (tl + tr) / 2;
    return get(l, r, v + v, tl, tm) + get(l, r, v + v + 1, tm + 1, tr) + t[v];
}
 
void upd(ll l, ll r, ll val, ll v = 1, ll tl = 1, ll tr = m) {
    if (tr < l || r < tl) return;
    if (l <= tl && tr <= r) {
        t[v] += val;
        return;
    }
    ll tm = (tl + tr) / 2;
    upd(l, r, val, v + v, tl, tm);
    upd(l, r, val, v + v + 1, tm + 1, tr);
}

void Baizho() {	
	cin>>n>>m;
	for(ll i = 1; i <= m; i ++) {
		cin>>o[i];
		pos[o[i]].pb(i);
	}
	for(ll i = 1; i <= n; i ++) cin>>need[i];
	cin>>k;
	for(ll i = 1; i <= k; i ++) cin>>ql[i]>>qr[i]>>qa[i];
	for(ll i = 1; i <= n; i ++) {
		bl[i] = 1, br[i] = k;
	}
	for(ll bin = 0; bin <= 20; bin ++) {
		for(ll i = 1; i <= n; i ++) {
			if(bl[i] <= br[i]) {
				check[(bl[i] + br[i]) / 2].pb(i);
			}
		}
		for(ll i = 1; i <= k; i ++) {
			if(ql[i] > qr[i]) {
				upd(1, qr[i], qa[i]);
                upd(ql[i], m, qa[i]);
			} else {
				upd(ql[i], qr[i], qa[i]);
			}
			for(auto j : check[i]) {
				ll res = 0;
//				cout<<j<<" "<<i<<"\n";
				for(auto p : pos[j]) {
//					cout<<p<<" "<<get(p, p)<<"\n";
					if(res < need[j]) res += get(p, p);
				}
//				cout<<res<<"\n";
				if(need[j] <= res) br[j] = i - 1;
				else bl[j] = i + 1;
			}
			if(!check[i].empty()) check[i].clear();
		}
		for (ll j = 1; j <= m * 4; ++ j) t[j] = 0;
	}
	for(ll i = 1; i <= n; i ++) {
		if(br[i] + 1 > k) cout<<"NIE\n";
		else cout<<br[i] + 1<<"\n";
	}
}
 
signed main() {		
 
    ios_base::sync_with_stdio(false);   
    cin.tie(0);cout.tie(0); 
//   	precalc();
   	
    int ttt = 1;
//    cin>>ttt;

    for(int i=1; i<=ttt; i++) {Baizho(); }
}

Compilation message (stderr)

met.cpp: In function 'void Freopen(std::string)':
met.cpp:37:34: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   37 | void Freopen(string Key){ freopen((Key+".in").c_str(), "r", stdin); freopen((Key+".out").c_str(), "w", stdout); }
      |                           ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
met.cpp:37:76: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   37 | void Freopen(string Key){ freopen((Key+".in").c_str(), "r", stdin); freopen((Key+".out").c_str(), "w", stdout); }
      |                                                                     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 12 / 12
• Subtask 2: 12 / 12
• Subtask 3: 12 / 12
• Subtask 4: 12 / 12
• Subtask 5: 13 / 13
• Subtask 6: 13 / 13
• Subtask 7: 0 / 13
• Subtask 8: 0 / 13