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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 |
---|---|---|---|---|---|---|---|---|---|
#176536 | #6427. Just Another Game of Stones | haze | TL | 19ms | 116516kb | C++14 | 3.7kb | 2023-09-11 19:26:33 | 2023-09-11 19:26:33 |
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{
vector<int>bsum;
int xorsum, mn, smn, len, tag;
node(){bsum.resize(32);}
}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 >= 3000){
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;
}
详细
Test #1:
score: 100
Accepted
time: 19ms
memory: 116516kb
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:
199999 199998 199997 199996 199995 199994 199993 199992 199991 199990 199989 199988 199987 199986 199985 199984 199983 199982 199981 199980 199979 199978 199977 199976 199975 199974 199973 199972 199971 199970 199969 199968 199967 199966 199965 199964 199963 199962 199961 199960 199959 199958 199957...