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| 747165 |
2023-05-23T19:30:17 Z |
Zflop |
벽 (IOI14_wall) |
C++14 |
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#include <bits/stdc++.h>
using namespace std;
#include <ext/pb_ds/assoc_container.hpp>
using namespace __gnu_pbds;
/*
ID: 10002181
LANG: C++
TASK: lamps
*/
using str = string; // yay python!
using ld = long double; // or double, if TL is tight
using ll = long long;
using int64 = ll;
using db = double;
using ull = unsigned long long;
#define int ll
#define ch() getchar()
#define pc(x) putchar(x)
#define tcT template<class T
#define tcTU tcT, class U
tcT> using V = vector<T>;
tcT, size_t SZ> using AR = array<T,SZ>;
using vi = V<int>;
using vb = V<bool>;
using vpi = V<pair<int,int>>;
using vvi = V<vi>;
using vl = V<ll>;
using vd = V<ld>;
using vstr = V<str>;
#define all(x) begin(x), end(x)
#define sor(x) sort(all(x))
#define rev(x) reverse(all(x))
#define sz(x) (int)(x).size()
#define rall(x) x.rbegin(), x.rend()
#define AR array
// loops
#define F0R(i, a, b) for (int i=a; i<b;++i)
#define FOR(i, a) for (int i=0; i<a;++i)
#define FORn(i, a) for (int i=1; i<=a;++i)
#define ROF(i,a) for(int i=a-1; i >= 0;--i)
#define R0F(i,a,b) for(int i=a; i > b;--i)
#define ROFn(i,a) for(int i=a; i > 0;--i)
#define rep(a) FOR(_, a)
#define trav(i,x) for(auto& i:x)
// pairs
#define mp make_pair
#define pi pair <int, int>
#define f first
#define s second
// vectors
#define lb lower_bound
#define ub upper_bound
#define SUM(v) accumulate(all(v), 0LL)
#define MN(v) *min_element(all(v))
#define MX(v) *max_element(all(v))
#define UNIQUE(a) (a).erase(unique((a).begin(),(a).end()),(a).end())
#define eb emplace_back
#define ft front()
#define bk back()
#define ins insert
#define pf push_front
#define pb push_back
#define emt empty()
#define rsz resize
#define pob pop_back()
#define pof pop_front()
#define ts to_string
#define setIO() ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL)
ll MOD = 1e9+7;
const ll MAX = 100000000000;
const ll INF = 1e18; // not too close to LLONG_MAX
const ld PI = acos((ld)-1);
#ifdef _DEBUG
freopen("input.txt", "r", stdin);
freopen("output.txt", "w", stdout);
#endif
const int dx[4] = {1,0,-1,0}, dy[4] = {0,1,0,-1}; // for every grid problem!!
tcT> bool ckmin(T& a, const T& b) {
return b < a ? a = b, 1 : 0; } // set a = min(a,b)
tcT> bool ckmax(T& a, const T& b) {
return a < b ? a = b, 1 : 0; }
//INPUT
#define tcTUU tcT, class ...U
tcT> void re(complex<T>& c);
tcTU> void re(pair<T,U>& p);
tcT> void re(V<T>& v);
tcT, size_t SZ> void re(AR<T,SZ>& a);
tcT> void re(T& x) { cin >> x; }
void re(db& d) { str t; re(t); d = stod(t); }
void re(ld& d) { str t; re(t); d = stold(t); }
tcTUU> void re(T& t, U&... u) { re(t); re(u...); }
tcT> void re(complex<T>& c) { T a,b; re(a,b); c = {a,b}; }
tcTU> void re(pair<T,U>& p) { re(p.f,p.s); }
tcT> void re(V<T>& x) { trav(a,x) re(a); }
tcT> void rv(int n, V<T>& x) { x.rsz(n); re(x); }
//OUTPUT
namespace output {
tcT> void PS(V<T>& x) { FOR(i,sz(x)) cout << x[i] << " \n"[i + 1 == sz(x)];}
tcT> void W(pair<T,T>& x) { cout << x.f << ' ' << x.s << '\n'; }
tcT> void PS(bool ok) { if(ok) cout << "YES\n"; else cout << "NO\n"; }
template<class T1, class T2> void pr(const pair<T1,T2>& x);
tcT, size_t SZ> void pr(const array<T,SZ>& x);
tcT> void pr(const vector<T>& x);
tcT> void pr(const set<T>& x);
template<class T1, class T2> void pr(const map<T1,T2>& x);
tcT> 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,"}");
}
tcT> void prContain(const T& x) {
pr("{");
bool fst = 1; trav(a,x) pr(!fst?", ":"",a), fst = 0;
pr("}");
}
tcT, size_t SZ> void pr(const array<T,SZ>& x) { prContain(x); }
tcT> void pr(const vector<T>& x) { prContain(x); }
tcT> 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"); } // print w/ spaces
template<class Arg> void ps(const Arg& first) { pr(first,"\n"); }
template<class Arg, class... Args> void ps(const Arg& first, const Args&... rest) {
pr(first," "); ps(rest...);
}
}
using namespace output;
template<class T,class V> void add(T& a, const V& b) {
a = (a + b) % MOD;
}
template<class T,class V> void sub(T& a, const V& b) {
a = (a - b + MOD) % MOD;
}
template<class T,class V> void mult(T& a, const V& b) {
a = a * b % MOD;
}
void setF(string fileName = "") {
ios_base::sync_with_stdio(0); cin.tie(0);
if((int)fileName.size()) {
freopen((fileName+".in").c_str(), "r", stdin);
freopen((fileName+".out").c_str(), "w", stdout);
}
}
vb bb;
vi SIEVE(int N){ // sieve in O(N logN)
vi pr;
bb.rsz(N);
bb[0] = bb[1] = true;
vi g(N);
F0R(i,2,N){
if(!bb[i]){
pr.pb(i);
for (int j = i + i; j < N; j += i) bb[j] = true;
}
}
return pr;
}
template<class T> using ordset = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
struct edge{
int a;
int b;
int w;
};
ll POW(ll x, ll y,ll mod){
ll res = 1LL;
x %= mod;
while(y){
if (y & 1LL)
res *= x;
res %= mod;
x = (x*x) % mod;
y >>= 1LL;
}
return res;
}
ll fact(ll x) { if(x) return x * fact(x - 1ll); return 1; }
vl fc;
void F(int N,ll MOD){
fc.rsz(N + 1);
fc[0] = 1;
FORn(i,N) fc[i] = fc[i - 1] * i * 1ll % MOD;
}
vl inv;
void I(int N,ll MOD){
inv.rsz(N + 1);
inv[N] = POW(fc[N],MOD - 2,MOD);
for (int i = N; i ;--i) inv[i - 1] = inv[i] * 1ll * i % MOD;
}
ll Cr(ll N,ll K,ll mod){
if(K < 0) return 0;
if(K > N) return 0;
return fc[N] * 1ll * inv[K] % mod * inv[N - K] % mod;
}
ll Ar(ll N,ll K,ll mod){
return fc[N] * inv[N - K] % mod;
}
ll iv(int k,ll MOD){
return POW(k,MOD-2,MOD);
}
/*
scanf("%lld", &testInteger);
printf("%lld", testInteger);
____ ____ ____ ____ ____ ____
||f |||l |||o |||p |||p ||||y ||
||__|||__|||__|||__|||__||||__||
|/__\|/__\|/__\|/__\|/__\||/__\|
**/
const ll inf = (ll)1e16;
int t;
bool ok;
template <class T> class SEG {
private:
public:
int n;
V<T>atleast,atmost,las1,las2,val;
V<V<T>> lazy;
vb ben;
void init(int N){
n = N;
atleast = las1 = las2 = val = V<T>(6 * n);
atmost = V<T>(6 * n,inf);
ben = vb(6 * n);
}
void prop(int node,int son,int l,int r){
//ps(las1[node],las2[node],l,r);
ben[son] = true;
if(atleast[son] < atleast[node]){
atleast[son] = atleast[node];
val[son] = val[node];
las1[son] = las1[node];
}
if(atmost[son] > atmost[node]){
atmost[son] = atmost[node];
las2[son] = las2[node];
}
if(atleast[son] >= atmost[son]){
//ps(l,r,atleast[son],atmost[son]);
if(las2[son] > las1[son]) {
las1[son] = las2[son] - 1;
atleast[son] = atmost[son];
las1[son] = 0;
val[son] = atmost[son];
}
else{
las2[son] = las1[son] - 1;
atmost[son] = inf;
las2[son] = atleast[son];
val[son] = atleast[son];
}
}
}
void propagate(int node,int l,int r){
if(!ben[node]) return;
ben[node] = false;
prop(node,2 * node,l,r);
prop(node,2 * node + 1,l,r);
if(l != r){
atleast[node] = 0;
atmost[node] = inf;
las1[node] = 0;
las2[node] = 0;
}
//else ps(l,atleast[node],atmost[node]);
}
void change(int a,int b,int v,int l,int r,int x){
T& y = atmost[x];
T& z = atleast[x];
if(a <= l && r <= b){
//ps(l,r,t);
ben[x] = true;
if(ok && z < v){
las1[x] = t;
val[x] = v;
z = v;
}
else if(!ok && v < y){
y = v;
las2[x] = t;
}
if(atleast[x] > atmost[x]){
//ps(l,r,atleast[x],atmost[x]);
if(las2[x] > las1[x]) {
atleast[x] = atmost[x];
val[x] = atmost[x];
las1[x] = 0;
}
else {
atmost[x] = inf;
las2[x] = atleast[x];
val[x] = atleast[x];
}
}
return;
}
propagate(x,l,r);
if(b < l || r < a) return;
int mid = (l + r) / 2;
int f1 = 2 * x;
int f2 = f1 | 1;
change(a,b,v,l,mid,f1);
change(a,b,v,mid + 1,r,f2);
}
void change(int l,int r,int v){
change(l,r,v,1,n,1);
}
int get(int node,int l,int r,int x){
if(l == r) return x;
int mid = (l + r) / 2;
propagate(x,l,r);
if(node <= mid) return get(node,l,mid,2 * x);
return get(node,mid + 1,r,2 * x + 1);
}
int get(int node){
return get(node,1,n,1);
}
};
void buildWall(int n, int k, int op[], int left[], int right[], int height[], int finalHeight[]){
SEG<ll> C;
C.init(n);
// int xx = C.get(4);
FOR(i,k){
left[i]++;
right[i]++;
++t;
ok = true;
if(op[i] == 1) C.change(left[i],right[i],height[i]);
else {
ok = false;
C.change(left[i],right[i],height[i]);
}
}
FOR(i,n){
int& a = finalHeight[i];
//ps(C.atleast[xx],C.atmost[xx],C.las1[xx],C.las2[xx]);
int x = C.get(i + 1);
a = C.val[x];
//ps(C.atleast[x],C.atmost[x],C.las1[x],C.las2[x]);
}
return;
}
Compilation message
wall.cpp: In function 'void setF(std::string)':
wall.cpp:166:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
166 | freopen((fileName+".in").c_str(), "r", stdin);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
wall.cpp:167:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
167 | freopen((fileName+".out").c_str(), "w", stdout);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/bin/ld: /tmp/ccx3YIgk.o: in function `main':
grader.cpp:(.text.startup+0x133): undefined reference to `buildWall(int, int, int*, int*, int*, int*, int*)'
collect2: error: ld returned 1 exit status
