oj.uz

Submission #307059

# Submission time Handle Problem Language Result Execution time Memory
307059 2020-09-26T22:08:39 Z ant101 Wall (IOI14_wall) C++14
100 / 100
 1673 ms 219688 KB 
#include "wall.h"
#include <iostream>
#include <algorithm>
#include <cstring>
#include <iomanip>
#include <fstream>
#include <cmath>
#include <vector>
#include <set>
#include <unordered_set>
#include <unordered_map>
#include <map>
#include <stack>
#include <queue>
#include <assert.h>
#include <limits>
#include <cstdio>
#include <complex>
using namespace std;

typedef long long ll;
typedef long double ld;
typedef double db;
typedef string str;

typedef pair<int, int> pi;
typedef pair<ll,ll> pl;
typedef pair<ld,ld> pd;
#define mp make_pair
#define f first
#define s second

typedef vector<int> vi;
typedef vector<ll> vl;
typedef vector<ld> vd;
typedef vector<str> vs;
typedef vector<pi> vpi;
typedef vector<pl> vpl;
typedef vector<pd> vpd;

#define sz(x) (int)x.size()
#define all(x) begin(x), end(x)
#define rall(x) (x).rbegin(), (x).rend()
#define rsz resize
#define ins insert
#define ft front()
#define bk back()
#define pf push_front
#define pb push_back
#define eb emplace_back
#define lb lower_bound
#define ub upper_bound

#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 trav(a,x) for (auto& a: x)

const int MOD = 1e9+7; // 998244353; // = (119<<23)+1
const int MX = 2e6+5;
const ll INF = 1e18;
const ld PI = 4*atan((ld)1);
const int dx[4] = {0,1,0,-1}, dy[4] = {1,0,-1,0};


namespace io {
    void setIn(string s) { freopen(s.c_str(),"r",stdin); }
    void setOut(string s) { freopen(s.c_str(),"w",stdout); }
    void setIO(string s = "") {
        ios_base::sync_with_stdio(0); cin.tie(0); // fast I/O
        // cin.exceptions(cin.failbit); // ex. throws exception when you try to read letter into int
        if (sz(s)) {
            setIn(s+".in");
            setOut(s+".out");
        } // for USACO
    }
}

using namespace io;

namespace input {
    template<class T> void re(complex<T>& x);
    template<class T1, class T2> void re(pair<T1,T2>& p);
    template<class T> void re(vector<T>& a);
    template<class T, size_t SZ> void re(array<T,SZ>& a);
    
    template<class T> void re(T& x) { cin >> x; }
    void re(double& x) { string t; re(t); x = stod(t); }
    void re(ld& x) { string t; re(t); x = stold(t); }
    template<class Arg, class... Args> void re(Arg& first, Args&... rest) {
        re(first); re(rest...);
    }
    
    template<class T> void re(complex<T>& x) { T a,b; re(a,b); x = cd(a,b); }
    template<class T1, class T2> void re(pair<T1,T2>& p) { re(p.f,p.s); }
    template<class T> void re(vector<T>& a) { F0R(i,sz(a)) re(a[i]); }
    template<class T, size_t SZ> void re(array<T,SZ>& a) { F0R(i,SZ) re(a[i]); }
}

namespace output {
    template<class T1, class T2> void pr(const pair<T1,T2>& x);
    template<class T, size_t SZ> void pr(const array<T,SZ>& x);
    template<class T> void pr(const vector<T>& x);
    template<class T> void pr(const set<T>& x);
    template<class T1, class T2> void pr(const map<T1,T2>& x);
    
    template<class T> void pr(const T& x) { cout << x; }
    template<class Arg, class... Args> void pr(const Arg& first, const Args&... rest) {
        pr(first); pr(rest...);
    }
    
    template<class T1, class T2> void pr(const pair<T1,T2>& x) {
        pr("{",x.f,", ",x.s,"}");
    }
    template<class T> void prContain(const T& x) {
        pr("{");
        bool fst = 1; for (const auto& a: x) pr(!fst?", ":"",a), fst = 0; // const needed for vector<bool>
        pr("}");
    }
    template<class T, size_t SZ> void pr(const array<T,SZ>& x) { prContain(x); }
    template<class T> void pr(const vector<T>& x) { prContain(x); }
    template<class T> void pr(const set<T>& x) { prContain(x); }
    template<class T1, class T2> void pr(const map<T1,T2>& x) { prContain(x); }
    
    void ps() { pr("\n"); }
    template<class Arg> void ps(const Arg& first) {
        pr(first); ps(); // no space at end of line
    }
    template<class Arg, class... Args> void ps(const Arg& first, const Args&... rest) {
        pr(first," "); ps(rest...); // print w/ spaces
    }
}

using namespace output;

using namespace input;

ll add(ll a, ll b) {
    a += b;
    if(a >= MOD) {
        a -= MOD;
    }
    return a;
}
ll sub(ll a, ll b) {
    a -= b;
    if(a < 0) {
        a += MOD;
    }
    return a;
}

ll mul(ll a, ll b) {
    return (a * b)%MOD;
}

void add_self(ll& a, ll b) {
    a = add(a, b);
}
void sub_self(ll& a, ll b) {
    a = sub(a, b);
}
void mul_self(ll& a, ll b) {
    a = mul(a, b);
}


pl lazy[4*MX];
pl t[4*MX];

ll N, K;

// blue = add
// green = delete

void push(ll curr) {
    if (lazy[curr].f != -2) {
//        ps(lazy[curr].f);
        t[curr*2] = {min(max(t[curr*2].f, lazy[curr].f), lazy[curr].s), max(min(t[curr*2].s, lazy[curr].s), lazy[curr].first)};
        t[curr*2+1] = {min(max(t[curr*2+1].f, lazy[curr].f), lazy[curr].s), max(min(t[curr*2+1].s, lazy[curr].s), lazy[curr].first)};
        lazy[curr*2] = {min(max(lazy[curr*2].f, lazy[curr].f), lazy[curr].s), max(min(lazy[curr*2].s, lazy[curr].s), lazy[curr].first)};
        lazy[curr*2+1] = {min(max(lazy[curr*2+1].f, lazy[curr].f), lazy[curr].s), max(min(lazy[curr*2+1].s, lazy[curr].s), lazy[curr].first)};
        lazy[curr] = {-2, 1e14};
    }
}

void upd(ll curr, ll tl, ll tr, ll l, ll r, ll f, ll s) {
    if (l > r) {
        return;
    }
    if (tl == l && tr == r) {
        t[curr] = {min(max(t[curr].f, f), s), max(min(t[curr].s, s), f)};
        lazy[curr] = {min(max(lazy[curr].f, f), s), max(min(lazy[curr].s, s), f)};
        return;
    }
    push(curr);
    ll tm = (tl+tr)/2;
    upd(curr*2, tl, tm, l, min(tm, r), f, s);
    upd(curr*2+1, tm+1, tr, max(l, tm+1), r, f, s);
    t[curr] = {min(t[curr*2].f, t[curr*2+1].f), max(t[curr*2].s, t[curr*2+1].s)};
    
}

pl qry(ll curr, ll tl, ll tr, ll l, ll r) {
    if (l > r) {
        return {1e13, -1};
    }
    if (tl == l && tr == r) {
        return t[curr];
    }
    push(curr);
    ll tm = (tl+tr)/2;
    pl q1 = qry(curr*2, tl, tm, l, min(tm, r));
    pl q2 = qry(curr*2+1, tm+1, tr, max(l, tm+1), r);
    return {min(q1.f, q2.f), max(q1.s, q2.s)};
}

void buildWall(int n, int k, int op[], int left[], int right[], int height[], int finalHeight[]) {
    N = n;
    K = k;
    F0R (i, MX*4) {
        lazy[i] = {-1, 1e13};
    }
    F0R (i, K) {
        if (op[i] == 1) {
            upd(1, 1, N, left[i]+1, right[i]+1, height[i], 1e13);
        } else {
            upd(1, 1, N, left[i]+1, right[i]+1, -1, height[i]);
        }
    }
    F0R (i, N) {
        finalHeight[i] = qry(1, 1, N, i+1, i+1).f;
    }
    return;
}

Compilation message

wall.cpp: In function 'void io::setIn(std::string)':
wall.cpp:68:35: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
   68 |     void setIn(string s) { freopen(s.c_str(),"r",stdin); }
      |                            ~~~~~~~^~~~~~~~~~~~~~~~~~~~~
wall.cpp: In function 'void io::setOut(std::string)':
wall.cpp:69:36: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
   69 |     void setOut(string s) { freopen(s.c_str(),"w",stdout); }
      |                             ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 72 ms 125560 KB Output is correct
2 Correct 77 ms 125816 KB Output is correct
3 Correct 74 ms 125688 KB Output is correct
4 Correct 84 ms 126340 KB Output is correct
5 Correct 82 ms 126328 KB Output is correct
6 Correct 82 ms 126328 KB Output is correct

Subtask #2
24.0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 74 ms 125560 KB Output is correct
2 Correct 255 ms 136056 KB Output is correct
3 Correct 345 ms 131576 KB Output is correct
4 Correct 1004 ms 140388 KB Output is correct
5 Correct 498 ms 140936 KB Output is correct
6 Correct 491 ms 140920 KB Output is correct

Subtask #3
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 73 ms 125548 KB Output is correct
2 Correct 76 ms 125688 KB Output is correct
3 Correct 76 ms 125688 KB Output is correct
4 Correct 85 ms 126332 KB Output is correct
5 Correct 81 ms 126328 KB Output is correct
6 Correct 81 ms 126332 KB Output is correct
7 Correct 72 ms 125560 KB Output is correct
8 Correct 247 ms 135672 KB Output is correct
9 Correct 352 ms 132344 KB Output is correct
10 Correct 1004 ms 140408 KB Output is correct
11 Correct 497 ms 140924 KB Output is correct
12 Correct 490 ms 140920 KB Output is correct
13 Correct 73 ms 125560 KB Output is correct
14 Correct 251 ms 135672 KB Output is correct
15 Correct 121 ms 127736 KB Output is correct
16 Correct 1026 ms 140708 KB Output is correct
17 Correct 498 ms 140792 KB Output is correct
18 Correct 505 ms 140668 KB Output is correct

Subtask #4
39.0 / 39.0

# Verdict Execution time Memory Grader output
1 Correct 73 ms 125560 KB Output is correct
2 Correct 74 ms 125688 KB Output is correct
3 Correct 75 ms 125692 KB Output is correct
4 Correct 83 ms 126328 KB Output is correct
5 Correct 81 ms 126328 KB Output is correct
6 Correct 82 ms 126328 KB Output is correct
7 Correct 73 ms 125556 KB Output is correct
8 Correct 250 ms 135764 KB Output is correct
9 Correct 343 ms 132344 KB Output is correct
10 Correct 989 ms 140536 KB Output is correct
11 Correct 498 ms 140920 KB Output is correct
12 Correct 496 ms 140920 KB Output is correct
13 Correct 73 ms 125560 KB Output is correct
14 Correct 251 ms 135812 KB Output is correct
15 Correct 120 ms 127736 KB Output is correct
16 Correct 1057 ms 140644 KB Output is correct
17 Correct 514 ms 140792 KB Output is correct
18 Correct 506 ms 140828 KB Output is correct
19 Correct 1673 ms 219688 KB Output is correct
20 Correct 1623 ms 217256 KB Output is correct
21 Correct 1629 ms 219640 KB Output is correct
22 Correct 1622 ms 217176 KB Output is correct
23 Correct 1619 ms 217148 KB Output is correct
24 Correct 1623 ms 217208 KB Output is correct
25 Correct 1621 ms 217336 KB Output is correct
26 Correct 1622 ms 219640 KB Output is correct
27 Correct 1634 ms 219656 KB Output is correct
28 Correct 1629 ms 217208 KB Output is correct
29 Correct 1627 ms 217024 KB Output is correct
30 Correct 1635 ms 217336 KB Output is correct