Submission #637528

#	Time	Username	Problem	Language	Result	Execution time	Memory
637528		Soul234	Monkey and Apple-trees (IZhO12_apple)	C++14	100 / 100	425 ms	202784 KiB

apple

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

void DBG() { cerr << "]\n"; }
template<class H, class... T> void DBG(H h, T... t) {
    cerr << h; if(sizeof...(t)) cerr << ", ";
    DBG(t...);
}
#ifdef LOCAL
#define dbg(...) cerr << "[" << #__VA_ARGS__ << "]: [", DBG(__VA_ARGS__)
#else
#define dbg(...) 0
#endif // LOCAL

#define FOR(i,a,b) for(int i = (a) ; i<(b) ; i++)
#define F0R(i,a) FOR(i,0,a)
#define ROF(i,a,b) for(int i = (b)-1 ; i>=(a) ; i--)
#define R0F(i,a) ROF(i,0,a)
#define each(e,a) for(auto &e : (a))
#define sz(v) (int)(v).size()
#define all(v) (v).begin(),(v).end()
#define rall(v) (v).rbegin(),(v).rend()
#define pb push_back
#define tcT template<class T
#define nl "\n"

using ll = long long;
using vi = vector<int>;
using pi = pair<int,int>;
using str = string;
tcT> using V = vector<T>;
tcT> using pqg = priority_queue<T,vector<T>,greater<T>>;

void setIO(string NAME = "") {
    cin.tie(0)->sync_with_stdio(0);
    if(sz(NAME)) {
        freopen((NAME + ".inp").c_str(),"r",stdin);
        freopen((NAME + ".out").c_str(),"w",stdout);
    }
}

tcT> bool ckmin(T&a, const T&b) {
    return b < a ? a=b,1 : 0; }
tcT> bool ckmax(T&a, const T&b) {
    return b > a ? a=b,1 : 0; }

const int MOD = 1e9 + 7;

using T = ll;

struct node {
    T val = 0, lazy = 0; node *c[2];
    int L, R;
    node() { c[0] = c[1] = 0; val = 0; lazy = 0; L = 1; R = 0; }
    node(int _L, int _R) { L = _L; R = _R; c[0] = c[1] = 0; val = 0; lazy = 0; }
    void push(int mid) {
        if(!lazy) return;
        if(!c[0]) c[0] = new node(L, mid);
        if(!c[1]) c[1] = new node(mid+1, R);
        c[0]->val = (mid-L+1);
        c[0]->lazy = lazy;
        c[1]->val = R-mid;
        c[1]->lazy = lazy;
        lazy = 0;
    }
    void upd(int l, int r) {
        if(l > R || r < L || L > R) return;
        if(l <= L && R <= r) {
            val = R-L+1;
            lazy = 1;
            return;
        }
        int mid = (L + R) >> 1;
        push(mid);
        if(!c[0]) c[0] = new node(L, mid);
        if(!c[1]) c[1] = new node(mid+1, R);
        assert(c[0] != NULL && c[1] != NULL);
        c[0]->upd(l, r);
        c[1]->upd(l, r);
        val = c[0]->val + c[1]->val;
    }
    T query(int l, int r) {
        if(l > R || r < L || L > R) return 0;
        if(l <= L && R <= r) return val;
        int mid = (L + R) >> 1; T ans = 0;
        push(mid);
        if(!c[0]) c[0] = new node(L, mid);
        if(!c[1]) c[1] = new node(mid+1, R);
        assert(c[0] != NULL && c[1] != NULL);
        return c[0]->query(l, r) + c[1]->query(l, r);
    }
};

node* st;

void solve() {
    st = new node(1, (1<<30)-1);
    int Q;
    cin>>Q;
    int C = 0;
    F0R(_,Q) {
        int t, l, r;
        cin>>t>>l>>r;
        if(t == 1) {
            C = st->query(l+C, r+C);
            cout << C << nl;
        }
        else st->upd(l+C, r+C);
    }
}

int main() {
    setIO();

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

    return 0;
}

Compilation message (stderr)

apple.cpp: In member function 'T node::query(int, int)':
apple.cpp:85:35: warning: unused variable 'ans' [-Wunused-variable]
   85 |         int mid = (L + R) >> 1; T ans = 0;
      |                                   ^~~
apple.cpp: In function 'void setIO(std::string)':
apple.cpp:37:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   37 |         freopen((NAME + ".inp").c_str(),"r",stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
apple.cpp:38:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   38 |         freopen((NAME + ".out").c_str(),"w",stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 100 / 100