Submission #1103046

#	Time	Username	Problem	Language	Result	Execution time	Memory
1103046		InvMOD	Meteors (POI11_met)	C++14	100 / 100	1660 ms	65536 KiB

met

#include <bits/stdc++.h>
using namespace std;

#define fi first
#define se second
#define gcd __gcd
#define sz(v) v.size()
#define pb push_back
#define pi pair<int,int>
#define all(v) (v).begin(), (v).end()
#define FOR(i, a, b) for(int i = (a); i <= (b); i++)
///#define int long long

using ll = long long;
using ld = long double;
using ull = unsigned long long;

template<typename T> bool ckmx(T &a, T b){if(a < b) return a = b, true; return false;}
template<typename T> bool ckmn(T &a, T b){if(a > b) return a = b, true; return false;}

const int N = 3e5+5;
const ll MOD = 1e9+7;
const ll INF = 1e18;


int n, m, q, need[N], l[N], r[N];
int ql[N], qr[N], qad[N];
ll fen[N];
vector<int> state[N];
vector<int> md[N];


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

void updateRange(int l, int r, ll val){
    update(l, val);
    update(r+1, -val);
    return;
}

ll get(int x){
    ll res = 0;
    for(; x > 0; x -= x&-x){
        res += fen[x];
    }
    return res;
}

void solve()
{
    cin >> n >> m;
    FOR(i, 1, m){
        int x; cin >> x;
        state[x].pb(i);
    }
    FOR(i, 1, n){
        cin >> need[i];
    }

    cin >> q;
    FOR(i, 1, q){
        cin >> ql[i] >> qr[i] >> qad[i];
    }

    FOR(i, 1, n){
        l[i] = 0, r[i] = q+1;
    }

    bool changed = true;
    while(changed){
        changed = false;

        for(int i = 1; i <= m; i++) fen[i] = 0;
        for(int i = 1; i <= n; i++){
            if(l[i]+1 != r[i]){
                md[(l[i]+r[i]>>1)].pb(i);
                changed = true;
            }
        }

        for(int i = 1; i <= q; i++){
            ///apply
            if(ql[i] <= qr[i]) updateRange(ql[i], qr[i], qad[i]);
            else updateRange(ql[i], m, qad[i]), updateRange(1, qr[i], qad[i]);

            while(md[i].size()){
                ///check good
                int cst = md[i].back(); md[i].pop_back();
                ll sum = 0;
                for(int sector : state[cst]){
                    sum += get(sector);
                    if(sum >= need[cst]) break;
                }
                if(sum >= need[cst]) r[cst] = i;
                else l[cst] = i;
            }
        }
    }

    FOR(i, 1, n){
        if(r[i] != q+1){
            cout << r[i] <<"\n";
        }
        else cout << "NIE\n";
    }
}

signed main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);

    #define name "InvMOD"
    if(fopen(name".INP", "r")){
        freopen(name".INP","r",stdin);
        freopen(name".OUT","w",stdout);
    }

    int t = 1; //cin >> t;
    while(t--) solve();
    return 0;
}

Compilation message (stderr)

met.cpp: In function 'void solve()':
met.cpp:81:25: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   81 |                 md[(l[i]+r[i]>>1)].pb(i);
      |                     ~~~~^~~~~
met.cpp: In function 'int main()':
met.cpp:121:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
  121 |         freopen(name".INP","r",stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
met.cpp:122:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
  122 |         freopen(name".OUT","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