Submission #1123783

#	Time	Username	Problem	Language	Result	Execution time	Memory
1123783		huyngodzz	Pilot (NOI19_pilot)	C++20	40 / 100	37 ms	4796 KiB

pilot

    ///huynhocute123///
#include<bits/stdc++.h>
using namespace std;
#define S second
#define F first
#define pii pair<int,int>
#define piii pair<int,pair<int,int>>
#define pb push_back
#define FOR(i, a, b) for(int i = a; i <= b; ++i)
#define REP(i, a, b) for(int i = b; i >= a; --i)
#define ALL(v) v.begin(),v.end()
#define inp(name) if(fopen(name, "r")) freopen(name, "r", stdin);
#define out(name) if(fopen(name, "w")) freopen(name, "w", stdout);
//random_device rd;
//mt19937 rng(rd());
//#pragma GCC optimize ("O3")
//#pragma GCC optimize ("unroll-loops")
//#pragma GCC target("popcnt")
//#define int long long
const int maxN = 1e6  +9 ;
const int  mod = 1e9 + 7;
const int base = 2309;
const int MAX = 1e9+9;
const double pi = 3.14159265358979323846;
const double rad = 3.14159265358979323846 /180;
bool minimize(int &u, int v){
    if(v < u){
        u = v;
        return 1;
    }
    return 0;
}
bool maximize(int &u, int v){
    if(v > u){
        u = v;
        return 1;
    }
    return 0;
}
bool maximizell(long long &u, long long v){
    if(v > u){
        u = v;
        return 1;
    }
    return 0;
}
bool minimizell(long long &u, long long v){
    if(v < u){
        u = v;
        return 1;
    }
    return 0;
}
inline int fastPow(int a, int n){
    if(n == 0) return 1;
    int t = fastPow(a, n >> 1);
    t = 1ll * t * t % mod;
    if(n & 1) t = 1ll * t * a % mod;
    return t;
}
int n , m;
int ans[maxN] , a[maxN];
priority_queue<pii ,vector<pii> ,greater<pii> >pq;
int root[maxN] , sz[maxN], isActivated[maxN];
pii querries[maxN];
int res;
int Find(int u ){
    return  u== root[u] ? u  : root[u]= Find(root[u]);
}
void Merge(int u ,int v){
    u = Find(u);
    v =Find(v);
    if(u == v)return;
//    cout << u << " " << v << '\n';
    res -=  (sz[v] * (sz[v]+1))/2;
    res -=  (sz[u] * (sz[u]+1))/2;
    root[v] = u;
    sz[u] += sz[v];
    res +=  (sz[u] * (sz[u]+1))/2;

}

inline void solve(){
    cin >>n >> m ;
    FOR(i, 1, n){
        cin >> a[i];
        pq.push({a[i] , i});
    }
    FOR(i,1 , m){
        cin >> querries[i].F;
        querries[i].S = i;
    }
    sort(querries +1, querries +1 + m);
    FOR(i, 1, n){
        root[i] = i;
        sz[i]= 1;
    }
//    cout << pq.top().F;
    FOR(i, 1, m){
//        cout << querries[i].F << '\n';
        while(pq.size()){
            int val = pq.top().F, id = pq.top().S;
            if(val > querries[i].F)break;
//            cout << val << " ";
//            cout <<id <<  " ";
            pq.pop();
            isActivated[id] =1;
            res++;
            if(id >=2 && isActivated[id-1] ==1)Merge(id , id -1);
            if(id <= n -1 && isActivated[id +1] == 1)Merge(id , id +1);
        }
//        FOR(j , 1, n)cout << Find(i) << " " ;
//        cout << '\n';
        ans[querries[i].S] = res;
    }
    FOR(i, 1, m)cout << ans[i] << '\n';
//   cout << pq.top().F ;
//    for(auto [x, id] : arr)cout << x << " ";

}
signed main(){
//    freopen("name.inp","r",stdin);
//    freopen("name.out","w",stdout);
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    inp("task.inp");
    int tc = 1;
   // cin >> tc;
    while( tc-- )solve();
    cerr << '\n' << "Time elapsed: " << (1.0 * clock() / CLOCKS_PER_SEC) << " s\n" ;


}

Compilation message (stderr)

pilot.cpp: In function 'int main()':
pilot.cpp:12:47: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   12 | #define inp(name) if(fopen(name, "r")) freopen(name, "r", stdin);
      |                                        ~~~~~~~^~~~~~~~~~~~~~~~~~
pilot.cpp:126:5: note: in expansion of macro 'inp'
  126 |     inp("task.inp");
      |     ^~~

• Subtask 1: 3 / 3
• Subtask 2: 10 / 10
• Subtask 3: 12 / 12
• Subtask 4: 15 / 15
• Subtask 5: 0 / 5
• Subtask 6: 0 / 9
• Subtask 7: 0 / 14
• Subtask 8: 0 / 10
• Subtask 9: 0 / 11
• Subtask 10: 0 / 11