//author: JainBot27
//Created on: 08/31/20
#pragma GCC optimize("Ofast")
#pragma GCC target("sse4,avx,avx2,fma")
#include <bits/stdc++.h>
//#include "happiness.h"
using namespace std;
#define f first
#define s second
#define pb push_back
#define mp make_pair
#define ts to_string
#define ub upper_bound
#define lb lower_bound
#define ar array
#define all(x) x.begin(), x.end()
#define siz(x) (int)x.size()
#define FOR(x, y, z) for(int x = (y); x < (z); x++)
#define ROF(x, y, z) for(int x = (y-1); x >= (z); x--)
#define F0R(x, z) FOR(x, 0, z)
#define R0F(x, z) ROF(x, z, 0)
#define trav(x, y) for(auto&x:y)
const string nl = "\n";
using ll = int64_t;
using vi = vector<int>;
using vl = vector<ll>;
using pii = pair<int, int>;
using pll = pair<ll, ll>;
using str = string;
using vpii = vector<pii>;
using vpll = vector<pll>;
template<class T> inline bool ckmin(T&a, T b) {return b < a ? a = b, 1 : 0;}
template<class T> inline bool ckmax(T&a, T b) {return b > a ? a = b, 1 : 0;}
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
str ts(char c) { return str(1,c); }
str ts(bool b) { return b ? "true" : "false"; }
str ts(const char* s) { return (str)s; }
str ts(str s) { return s; }
template<class A> str ts(complex<A> c) {
stringstream ss; ss << c; return ss.str(); }
str ts(vector<bool> v) {
str res = "{"; for(int i = 0;i < (int)v.size(); i++) res += char('0'+v[i]);
res += "}"; return res; }
template<size_t SZ> str ts(bitset<SZ> b) {
str res = ""; for(int i = 0; i < b.size(); i++) res += char('0'+b[i]);
return res; }
template<class A, class B> str ts(pair<A,B> p);
template<class T> str ts(T v) {
bool fst = 1; str res = "{";
for (const auto& x: v) {
if (!fst) res += ", ";
fst = 0; res += ts(x);
}
res += "}"; return res;
}
template<class A, class B> str ts(pair<A,B> p) {
return "("+ts(p.f)+", "+ts(p.s)+")"; }
void DBG() { cerr << "]" << endl; }
template<class H, class... T> void DBG(H h, T... t) {
cerr << ts(h); if (sizeof...(t)) cerr << ", ";
DBG(t...); }
#ifdef D
#define dbg(...) cerr << "LINE(" << __LINE__ << ") -> [" << #__VA_ARGS__ << "]: [", DBG(__VA_ARGS__)
#else
#define dbg(...) 0
#endif
using node = ll;
struct lazy{
int size;
vector<node> operations;
vector<node> vals;
const node NEUTRAL_ELEMENT = 1e18;
const node NO_OPERATION = 0;
const node START_VAL = 0;
ll query_op(node a, node b, int len){
len = len;
return (a + b);
}
ll calc_op(node a, node b){
return min(a, b);
}
void apply_mod_op(node & a, node b, int c){
a = query_op(a, b, c);
}
void propogate(int x, int lx, int rx){
if(rx - lx == 1) return;
int m = (lx + rx)/2;
apply_mod_op(operations[2*x+1], operations[x], 1);
apply_mod_op(vals[2*x+1], operations[x], m-lx);
apply_mod_op(operations[2*x+2], operations[x], 1);
apply_mod_op(vals[2*x+2], operations[x], rx-m);
operations[x] = NO_OPERATION;
}
void build(int x, int lx, int rx){
if(rx == lx + 1){
vals[x] = START_VAL;
return;
}
int m = (lx + rx)/2;
build(2*x + 1, lx, m);
build(2*x + 2, m, rx);
vals[x] = calc_op(vals[x * 2 + 1], vals[x * 2 + 2]);
}
void init(int n){
size = 1;
while(size < n) size *= 2;
operations.assign(2 * size, 0);
vals.assign(2 * size, 0);
// build(0, 0, size);
}
void update(int l, int r, node v, int x, int lx, int rx){
propogate(x, lx, rx);
if(lx >= r || l >= rx) return;
if(lx >= l && rx <= r){
apply_mod_op(operations[x], v, 1);
apply_mod_op(vals[x], v, rx - lx);
return;
}
int m = (lx + rx)/2;
update(l, r, v, 2 * x + 1, lx , m);
update(l, r, v, 2 * x + 2, m , rx);
vals[x] = calc_op(vals[x * 2 + 1], vals[x * 2 + 2]);
}
void update(int l, int r, node v){
update(l, r, v, 0, 0, size);
}
node query(int l, int r, int x, int lx, int rx){
propogate(x, lx, rx);
if(lx >= r || l >= rx) return NEUTRAL_ELEMENT;
if(lx >= l && rx <= r){
return vals[x];
}
int m = (lx + rx)/2;
node m1 = query(l, r, 2 * x + 1, lx, m);
node m2 = query(l, r, 2 * x + 2, m, rx);
return calc_op(m1, m2);
}
node query(int l , int r){
return query(l, r, 0, 0, size);
}
} st;
multiset<int> e;
bool init(int coinsCount, long long maxCoinSize, long long coins[]){
st.init(1000001);
//assert(maxCoinSize<=1000001);
FOR(i, 1, 1000001){
st.update(i, i+1, -i);
}
F0R(i, coinsCount){
st.update(coins[i],1000001,coins[i]);
e.insert(coins[i]);
}
//return (st.query(1, *(e.rbegin())+1)>=0?"YES":"NO") << nl;
return st.query(1, *(e.rbegin())+1)>=0;
}
bool is_happy(int event, int coinsCount, long long coins[]){
dbg(event);
if(event == -1){
F0R(i, coinsCount) coins[i]*=-1;
}
F0R(i, coinsCount){
int x; x = coins[i];
dbg(x);
if(x < 0){
assert(e.find(-x) != e.end());
e.erase(e.find(-x));
}
else e.insert((x));
if(x < 0){
st.update(-x, 1000001, x);
}
else{
st.update(x, 1000001, x);
}
}
F0R(i, coinsCount) if(coins[i]<0) coins[i]*=-1;
return st.query(1, *(e.rbegin())+1)>=0;
}
/*
signed main(){
ios_base::sync_with_stdio(0); cin.tie(0);
long long x[] = {4,8,1,2,6};
cout << (init(5, 100, x)?"YES":"NO")<< nl;
long long y[] = {2, 8};
cout << (is_happy(-1, 2, y)?"YES":"NO")<< nl;
long long z[] = {7, 9, 2};
cout << (is_happy(1, 2, y)?"YES":"NO")<< nl;
}
/*
* Stuff I should try:
* Is it Monotonic? -> Binary Search
* Is N small? -> Bitsets or other exponential
* Edge Cases? Look Carefully
* Can't figure anything out? Brute Force and see patterns
* Try to prove greedies
* Prefix Sums, Amortization, DP, Data Structures
*/
Compilation message
happiness.cpp:201:1: warning: "/*" within comment [-Wcomment]
201 | /*
|
happiness.cpp: In function 'bool is_happy(int, int, long long int*)':
happiness.cpp:75:18: warning: statement has no effect [-Wunused-value]
75 | #define dbg(...) 0
| ^
happiness.cpp:168:5: note: in expansion of macro 'dbg'
168 | dbg(event);
| ^~~
happiness.cpp:75:18: warning: statement has no effect [-Wunused-value]
75 | #define dbg(...) 0
| ^
happiness.cpp:174:9: note: in expansion of macro 'dbg'
174 | dbg(x);
| ^~~
grader.cpp: In function 'int main()':
grader.cpp:16:12: warning: unused variable 'max_code' [-Wunused-variable]
16 | long long max_code;
| ^~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Runtime error |
454 ms |
67064 KB |
Execution killed with signal 11 |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Runtime error |
454 ms |
67064 KB |
Execution killed with signal 11 |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Runtime error |
454 ms |
67064 KB |
Execution killed with signal 11 |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Runtime error |
454 ms |
67064 KB |
Execution killed with signal 11 |
| 2 |
Halted |
0 ms |
0 KB |
- |
