Submission #893950

#	Time	Username	Problem	Language	Result	Execution time	Memory
893950		Baizho	Meteors (POI11_met)	C++14	100 / 100	2096 ms	61040 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")


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];
ll f[N];
vector<int> pos[N];

void update(int p, ll x) {
	while(p <= m) {
		f[p] += x;
		p += (p & -p);
	}
}

ll get(int p) {
	ll res = 0;
	while(p > 0) {
		res += f[p];
		p -= (p & -p);
	}
	return res;
}

void Baizho() {	
	cin>>n>>m;
	for(int i = 1; i <= m; i ++) {
		cin>>o[i];
		pos[o[i]].pb(i);
	}
	for(int i = 1; i <= n; i ++) cin>>need[i];
	cin>>k;
	for(int i = 1; i <= k; i ++) cin>>ql[i]>>qr[i]>>qa[i];
	for(int i = 1; i <= n; i ++) {
		bl[i] = 1, br[i] = k;
	}
	for(int bin = 0; bin <= 30; bin ++) {
		vector<int> check[k + 5];
		for(int j = 0; j <= max(m, k); j ++) {
			f[j] = 0;
		}
		for(int i = 1; i <= n; i ++) {
			if(bl[i] <= br[i]) check[(bl[i] + br[i]) / 2].pb(i);
		}
		for(int i = 1; i <= k; i ++) {
			if(ql[i] > qr[i]) {
				update(ql[i], qa[i]);
//				cout<<ql[i]<<" "<<qa[i]<<" "<<get(ql[i])<<"\n";
				update(1, qa[i]);
				update(qr[i] + 1, -qa[i]);
			} else {
				update(ql[i], qa[i]);
				update(qr[i] + 1, -qa[i]);
			}
			for(auto j : check[i]) {
				ll res = 0;
//				cout<<j<<" "<<i<<"\n";
				for(auto p : pos[j]) {
//					cout<<p<<" "<<get(p)<<"\n";
					res += get(p);
					if(res >= need[j]) break;
				}
//				cout<<res<<"\n";
				if(need[j] <= res) br[j] = i - 1;
				else bl[j] = i + 1;
			}
		}
	}
	for(int 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:35:34: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   35 | void Freopen(string Key){ freopen((Key+".in").c_str(), "r", stdin); freopen((Key+".out").c_str(), "w", stdout); }
      |                           ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
met.cpp:35:76: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   35 | 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: 13 / 13
• Subtask 8: 13 / 13