結果
| 問題 |
No.876 Range Compress Query
|
| コンテスト | |
| ユーザー |
 naoya_t
|
| 提出日時 | 2020-01-03 04:26:32 |
| 言語 | C++14 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
WA
|
| 実行時間 | - |
| コード長 | 11,244 bytes |
| コンパイル時間 | 2,013 ms |
| コンパイル使用メモリ | 183,632 KB |
| 実行使用メモリ | 14,464 KB |
| 最終ジャッジ日時 | 2024-11-22 18:54:04 |
| 合計ジャッジ時間 | 4,065 ms |
|
ジャッジサーバーID （参考情報） |
judge3 / judge2 |
（要ログイン）
| ファイルパターン | 結果 |
|---|---|
| sample | AC * 1 |
| other | AC * 14 WA * 4 |
ソースコード
#include <bits/stdc++.h>
using namespace std;
#define NDEBUG
#include <cassert>
typedef long long ll;
typedef long double Double;
typedef unsigned long long ull;
typedef pair<int,int> ii;
typedef pair<ll,ll> llll;
typedef pair<double,double> dd;
typedef vector<int> vi;
typedef vector<vector<int>> vvi;
typedef vector<ii> vii;
typedef vector<vector<ii>> vvii;
typedef vector<ll> vll;
typedef vector<vector<ll>> vvll;
typedef vector<llll> vllll;
typedef vector<bool> vb;
typedef vector<string> vs;
typedef vector<double> vd;
typedef vector<long double> vD;
#define sz(a) int((a).size())
#define pb push_back
#define eb emplace_back
#define FOR(var,from,to) for(int var=(from);var<=(to);++var)
#define rep(var,n) for(int var=0;var<(n);++var)
#define rep1(var,n) for(int var=1;var<=(n);++var)
#define repC2(vari,varj,n) for(int vari=0;vari<(n)-1;++vari)for(int varj=vari+1;varj<(n);++varj)
#define repC3(vari,varj,vark,n) for(int vari=0;vari<(n)-2;++vari)for(int varj=vari+1;varj<(n)-1;++varj)for(int vark=varj+1;vark<(n);++vark)
#define ALL(c) (c).begin(),(c).end()
#define RALL(c) (c).rbegin(),(c).rend()
#define tr(i,c) for(auto i=(c).begin(); i!=(c).end(); ++i)
#define found(s,e) ((s).find(e)!=(s).end())
#define mset(arr,val) memset(arr,val,sizeof(arr))
#define mid(x,y) ((x)+((y)-(x))/2)
#define IN(x,a,b) ((a)<=(x)&&(x)<=(b))
#define cons make_pair
#define clamp(v,lo,hi) min(max(v,lo),hi)
template<typename T1, typename T2> inline void amin(T1 & a, T2 const & b) { if (a>b) a=b; }
template<typename T1, typename T2> inline void amax(T1 & a, T2 const & b) { if (a<b) a=b; }
template<typename X, typename T> auto vectors(X x, T a) { return vector<T>(x, a); }
template<typename X, typename Y, typename Z, typename... Zs> auto vectors(X x, Y y, Z z, Zs... zs) { auto cont = vectors(y, z, zs...); return vector<decltype(cont)>(x, cont); }
inline ll square(ll x) { return x * x; }
inline ll gcd(ll a, ll b) { while(a) swap(a, b%=a); return b; }
template <typename T>
inline T mod(T a, T b) { return ((a % b) + b) % b; }
template <typename T>
int find_left(vector<T>& v, T elem) {
return (int)(upper_bound(v.begin(), v.end(), elem) - v.begin()) - 1;
}
template <typename T>
int find_right(vector<T>& v, T elem) {
return (int)(lower_bound(v.begin(), v.end(), elem) - v.begin());
}
const ll MOD=1000000007LL;
inline ll ADD(ll x, ll y) { return (x+y) % MOD; }
inline ll SUB(ll x, ll y) { return (x-y+MOD) % MOD; }
inline ll MUL(ll x, ll y) { return x*y % MOD; }
inline ll POW(ll x, ll e) { ll v=1; for(; e; x=MUL(x,x), e>>=1) if (e&1) v = MUL(v,x); return v; }
inline ll INV(ll y) { /*assert(y%MOD!=0);*/ return POW(y, MOD-2); }
inline ll DIV(ll x, ll y) { return MUL(x, INV(y)); }
#define INTSPACE 12
char _buf[INTSPACE*1000000 + 3];
int loadint() {
if (fgets(_buf, INTSPACE+3, stdin)==NULL) return 0;
return atoi(_buf);
}
int loadvec(vector<int>& v, int N=-1) {
if (N == 0) {
v.clear();
return 0;
}
if (N == -1) {
N = loadint();
if (N==0) return 0;
}
int bufsize = INTSPACE*N + 3;
if (fgets(_buf, bufsize, stdin)==NULL) return 0;
v.resize(N);
int i=0;
bool last = false;
for (char *p=&_buf[0]; ;) {
char *q = p;
while (*q > ' ') ++q;
if (*q == 0x0D || *q == 0x0A) last = true;
*q = 0;
v[i++] = atoi(p);
if (last || i == N) break;
p = q+1;
}
return i;
}
void read_cr() {
fgets(_buf, 256, stdin);
}
void horizontal(vector<int>& v) {
int L = v.size();
for (int i=0; i<L; ++i) {
printf("%d%c", v[i], (i==L-1)?'\n':' ');
}
}
void horizontall(vector<long long>& v) {
int L = v.size();
for (int i=0; i<L; ++i) {
printf("%lld%c", v[i], (i==L-1)?'\n':' ');
}
}
template <typename Elem, typename LazyOperand, typename MERGE_DATA_PROC, typename APPLY_LAZY_PROC, typename MERGE_LAZY_PROC>
class LazySegmentTree {
public:
MERGE_DATA_PROC f;
APPLY_LAZY_PROC g;
MERGE_LAZY_PROC h;
Elem elem_ident;
LazyOperand lazy_operand_ident;
vector<Elem> elems;
vector<LazyOperand> lazy_operands;
int n, height;
inline void assign_merged_lazy(LazyOperand& dest, LazyOperand x) {
dest = h(dest, x);
}
LazySegmentTree(MERGE_DATA_PROC f, APPLY_LAZY_PROC g, MERGE_LAZY_PROC h,
Elem elem_ident, LazyOperand lazy_operand_ident)
: f(f), g(g), h(h), elem_ident(elem_ident), lazy_operand_ident(lazy_operand_ident) {
}
void init(int n_temp) {
n = 1; height = 0;
while (n < n_temp) { n <<= 1; ++height; }
elems.assign(2*n, elem_ident);
lazy_operands.assign(2*n, lazy_operand_ident);
}
void build(const vector<Elem>& v){
int n_temp = v.size();
init(n_temp);
rep(i,n_temp) elems[n+i] = v[i];
for (int i=n-1; i>0; --i) {
elems[i] = f(elems[i*2], elems[i*2+1]);
}
}
inline Elem reflect(int k){
return (lazy_operands[k] == lazy_operand_ident) ? elems[k] : g(elems[k], lazy_operands[k]);
}
inline void _eval(int k){
if (lazy_operands[k] != lazy_operand_ident) {
assign_merged_lazy(lazy_operands[k*2], lazy_operands[k]);
assign_merged_lazy(lazy_operands[k*2+1], lazy_operands[k]);
elems[k] = reflect(k);
lazy_operands[k] = lazy_operand_ident;
}
}
inline void eval_down(int k) {
for (int i=height; i>0; --i) {
_eval(k >> i);
}
}
inline void recalc(int k) {
while (k >>= 1) {
elems[k] = f(reflect(k*2), reflect(k*2+1));
}
}
void update(int a, int b, LazyOperand x) {
a += n; b += n;
eval_down(a);
eval_down(b-1);
for (int l=a,r=b; l<r; l>>=1,r>>=1) {
if (l & 1) assign_merged_lazy(lazy_operands[l++], x);
if (r & 1) assign_merged_lazy(lazy_operands[--r], x);
}
recalc(a);
recalc(b-1);
}
void set_val(int a, Elem e) {
a += n;
eval_down(a);
elems[a] = e;
lazy_operands[a] = lazy_operand_ident;
recalc(a);
}
Elem query(int a, int b) {
a += n; b += n;
eval_down(a);
eval_down(b-1);
Elem vl = elem_ident, vr = elem_ident;
for (int l=a,r=b; l<r; l>>=1,r>>=1) {
if (l & 1) vl = f(vl, reflect(l++));
if (r & 1) vr = f(reflect(--r), vr);
}
Elem merged = f(vl, vr);
return merged;
}
void desc() {
}
};
/***
using ll2 = pair<ll, int>;
auto f_sum = [](ll2 a, ll2 b){ return ll2(a.first + b.first, a.second + b.second); };
auto g = [](ll2 a, ll b){
ll p = a.second * b;
return ll2(a.first + p, a.second); };
auto h = [](ll a, ll b){ return a+b; };
LazySegmentTree<ll2,ll,decltype(f_sum),decltype(g),decltype(h)> st(f_sum, g, h, ll2(0,0), 0);
st.build(vector<ll2>(N, ll2(0, 1)));
auto g = [](ll2 a, ll b){
return ll2((a.second % 2) ? a.first^b : a.first, a.second); }
auto h = [](ll a, ll b){ return a^b; };
LazySegmentTree<ll,ll,decltype(f_sum),decltype(g),decltype(h)> st(f_sum, g, h, ll2(0,0), 0);
st.build(vector<ll>(N, ll2(0,1));
auto g = [](ll2 a, ll b){
ll p = a.second * b;
return ll2(p ? p-a.first : a.first, a.second); }
auto h = [](ll a, ll b){ return a^b; };
LazySegmentTree<ll,ll,decltype(f_sum),decltype(g),decltype(h)> st(f_sum, g, h, ll2(0,0), 0);
st.build(vector<ll>(N, ll2(0,1));
auto f = [](ll a, ll b){ return min(a,b); }
auto g = [](ll a, ll b){ return b; }
auto h = [](ll a, ll b){ return min(a,b); };
LazySegmentTree<ll,ll,decltype(f),decltype(g),decltype(h)> st(f, g, h, LLONG_MAX, LLONG_MAX);
st.build(vector<ll>(N, LLONG_MAX));
auto f = [](ll a, ll b){ return min(a,b); };
auto g = [](ll a, ll b){ return min(a,b); };
auto h = [](ll a, ll b){ return min(a,b); };
LazySegmentTree<ll,ll,decltype(f),decltype(g),decltype(h)> st(f, g, h, LLONG_MAX, LLONG_MAX);
st.build(vector<ll>(N, LLONG_MAX));
***/
template <typename T>
class SegmentTree {
public:
int N;
vector<T> buf_;
using MERGER = function<T(T,T)>;
MERGER merge;
T ident;
int ceil2(int size) {
int n = 1;
while (n < size) n *= 2;
return n;
}
SegmentTree(int size, MERGER merge, T ident) : merge(merge), ident(ident) {
N = ceil2(size);
buf_.assign(N*2, ident);
}
SegmentTree(vector<T> ar, MERGER merge, T ident) : merge(merge), ident(ident) {
int size = ar.size();
N = ceil2(size);
buf_.assign(N*2, ident);
for (int i=0; i<size; ++i) update(i, ar[i]);
}
void update(int i, T x) {
i = N + i - 1;
if (merge(buf_[i], x) != x) return;
buf_[i] = x;
while (i > 0) {
i = (i - 1) / 2;
buf_[i] = merge(buf_[i*2+1], buf_[i*2+2]);
}
}
T query(int lo, int hi) {
return query(lo, hi, 0, 0, N);
}
T query(int a, int b, int k, int l, int r) {
if (r <= a || b <= l) return ident;
if (a <= l && r <= b) {
return buf_[k];
} else {
T lv = query(a, b, 2*k+1, l, (l+r)/2);
T rb = query(a, b, 2*k+2, (l+r)/2, r);
return merge(lv, rb);
}
}
void dump() {
}
};
template <typename T>
class SumSegmentTree : public SegmentTree<T> {
public:
SumSegmentTree(int size) :
SegmentTree<T>(size, [](T a,T b){return a+b;}, 0) {}
SumSegmentTree(vector<T> ar) :
SegmentTree<T>(ar, [](T a,T b){return a+b;}, 0) {}
};
int main() {
using ll2 = pair<ll, int>;
int N, Q; scanf("%d %d%*c", &N, &Q);
vi a(N); loadvec(a,N);
vector<ll2> ar(N); rep(i,N) ar[i] = ll2(a[i], 1);
auto f_sum = [](ll2 a, ll2 b){ return ll2(a.first + b.first, a.second + b.second); };
auto g = [](ll2 a, ll b){
ll p = a.second * b;
return ll2(a.first + p, a.second); };
auto h = [](ll a, ll b){ return a+b; };
LazySegmentTree<ll2,ll,decltype(f_sum),decltype(g),decltype(h)> st(f_sum, g, h, ll2(0,0), 0);
st.build(ar);
vi dif(N, 0);
rep(i,N-1) {
dif[i] = (int)(a[i] != a[i+1]);
}
SumSegmentTree<int> sst(dif);
rep(i,Q){
int op; scanf("%d ", &op);
switch (op){
case 1:
{
int l, r, x;
scanf("%d %d %d%*c", &l, &r, &x); --l; --r;
st.update(l, r+1, (ll)x);
if (0 <= l-1) {
ll u = st.query(l-1,l).first, v = st.query(l,l+1).first;
sst.update(l-1, (int)(u != v));
}
if (r+1 <= N-1) {
ll u = st.query(r,r+1).first, v = st.query(r+1,r+2).first;
sst.update(r, (int)(u != v));
}
}
break;
case 2:
{
int l, r;
scanf("%d %d%*c", &l, &r); --l; --r;
printf("%d\n", 1 + sst.query(l, r));
}
break;
}
}
return 0;
}