QOJ.ac
QOJ
ID | 题目 | 提交者 | 结果 | 用时 | 内存 | 语言 | 文件大小 | 提交时间 | 测评时间 |
---|---|---|---|---|---|---|---|---|---|
#176609 | #6427. Just Another Game of Stones | haze | TL | 0ms | 3976kb | C++23 | 3.7kb | 2023-09-11 20:21:57 | 2023-09-11 20:21:58 |
Judging History
answer
#pragma GCC optimize("Ofast")
#pragma GCC target("avx2,abm,mmx")
#include<bits/stdc++.h>
#define ll long long
#define irep(i,l,r) for(ll i = l; i <= r; ++i)
using namespace std;
inline int read(){
int s=0;
char chcc=getchar();
while(chcc<'0'||chcc>'9')chcc = getchar();
while(chcc>='0'&&chcc<='9') s=(s<<3)+(s<<1)+(chcc^48),chcc=getchar();
return s;
}
const int N = 600999;
const int itinf = 1000000000;
int n, m;
struct node{
int bsum[32];
int xorsum, mn, smn, len, tag;
node(){}
}t[N];
/*
void fdmn(vector<int>aa, int &mn, int &smn){
sort(aa.begin(), aa.end());
unique(aa.begin(), aa.end());
mn = aa[0], smn = aa[1];
}
*/
void update(int x){
t[x].mn = min(t[x << 1].mn, t[x << 1 | 1].mn);
t[x].smn = itinf;
if(t[x << 1].mn > t[x].mn)t[x].smn = min(t[x].smn, t[x << 1].mn);
if(t[x << 1].smn > t[x].mn)t[x].smn = min(t[x].smn, t[x << 1].smn);
if(t[x << 1 | 1].mn > t[x].mn)t[x].smn = min(t[x].smn, t[x << 1 | 1].mn);
if(t[x << 1 | 1].smn > t[x].mn)t[x].smn = min(t[x].smn, t[x << 1 | 1].smn);
// fdmn({t[x << 1].mn, t[x << 1].smn, t[x << 1 | 1].mn, t[x << 1 | 1].smn}, t[x].mn, t[x].smn);
t[x].len = 0, t[x].xorsum = t[x << 1].xorsum ^ t[x << 1 | 1].xorsum;
if(t[x << 1].mn == t[x].mn)t[x].len += t[x << 1 | 1].len;
if(t[x << 1 | 1].mn == t[x].mn)t[x].len += t[x << 1 | 1].len;
irep(i,0,31)t[x].bsum[i] = t[x << 1].bsum[i] + t[x << 1 | 1].bsum[i];
}
void operate(int x,int lim){
if(t[x].len & 1)t[x].xorsum ^= (lim ^ t[x].mn);
t[x].tag = lim;
int od = t[x].mn, nw = lim;
irep(i,0,31){
t[x].bsum[i] += ((nw & 1) - (od & 1)) * t[x].len;
nw >>= 1, od >>= 1;
}
t[x].mn = lim;
}
void pushdown(int x){
int tag = t[x].tag;
t[x].tag = 0;
if(t[x << 1].mn < tag)operate(x << 1,tag);
if(t[x << 1 | 1].mn < tag)operate(x << 1 | 1,tag);
}
void build(int x,int l,int r){
if(l == r){
int val;
val = t[x].mn = t[x].xorsum = read();
t[x].len = 1;
t[x].smn = t[x].tag = itinf;
irep(i,0,31){
t[x].bsum[i] += val & 1;
val >>= 1;
}
return;
}
int mid = (l + r) >> 1;
build(x << 1,l, mid);
build(x << 1 | 1, mid + 1, r);
update(x);
return;
}
void modify(int x,int l,int r,int L,int R, int lim){
// x -> max(x, val)
if(l > R || L > r)return;
if(L <= l && r <= R){
if(lim <= t[x].mn)return;
if(l != r && t[x].tag)pushdown(x);
if(lim < t[x].smn){
operate(x,lim);
return;
}
int mid = (l + r) >> 1;
if(l == r)return;
modify(x << 1,l, mid, L,R,lim);
modify(x << 1 | 1, mid + 1, r ,L,R,lim);
update(x);
return;
}
if(l != r && t[x].tag)pushdown(x);
int mid = (l + r) >> 1;
modify(x << 1,l, mid, L,R,lim);
modify(x << 1 | 1, mid + 1, r ,L,R,lim);
update(x);
return;
}
int xor_query(int x,int l,int r,int L,int R){
if(l > R || L > r)return 0;
if(L <= l && r <= R)return t[x].xorsum;
if(l != r && t[x].tag)pushdown(x);
int mid = (l + r) >> 1;
return xor_query(x << 1,l,mid,L,R) ^ xor_query(x << 1 | 1,mid+1,r,L,R);
}
int bit_cnt(int x,int l, int r, int L ,int R,int id){
if(l > R || L > r)return 0;
if(L <= l && r <= R)return t[x].bsum[id];
if(l != r && t[x].tag)pushdown(x);
int mid = (l + r) >> 1;
return bit_cnt(x << 1 ,l,mid,L,R,id) + bit_cnt(x << 1 | 1,mid+1,r,L,R,id);
}
int main(){
clock_t st = clock();
n = read(), m = read();
build(1,1,n);
while(m --){
clock_t cur = clock();
if(cur - st >= 2000000){
st = cur;
cout << m << endl;
}
int op = read(), l = read(), r = read(), x = read();
if(op == 1){
modify(1,1,n,l,r,x);
}else{
ll key = xor_query(1,1,n,l,r);
if((key ^ x) == 0){
puts("0");
continue;
}
int hb = log2(key ^ x);
ll ans = bit_cnt(1,1,n,l,r,hb);
if(x & (1 << hb))++ ans;
if(n <= 10000)printf("%lld\n",ans);
}
}
return 0;
}
詳細信息
Test #1:
score: 100
Accepted
time: 0ms
memory: 3976kb
input:
5 4 1 2 1 4 1 2 1 3 1 1 2 4 3 2 2 4 4 2 1 4 4
output:
1 0 3
result:
ok 3 number(s): "1 0 3"
Test #2:
score: -100
Time Limit Exceeded
input:
200000 200000 962352030 173642520 1008864183 74920228 684681800 500911321 1001441054 257633652 185843534 59168654 317689197 731348417 123888883 708119712 340055368 876566011 980078202 969174443 814012870 715639041 596932238 173757742 314504576 1045746913 740811577 570187156 999816627 12441059 122507...
output:
167124