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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 |
---|---|---|---|---|---|---|---|---|---|
#176510 | #6427. Just Another Game of Stones | haze | TL | 31ms | 116472kb | C++14 | 3.3kb | 2023-09-11 18:51:26 | 2023-09-11 18:51:27 |
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){
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(){
n = read(), m = read();
build(1,1,n);
while(m --){
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;
printf("%lld\n",ans);
}
}
return 0;
}
详细
Test #1:
score: 100
Accepted
time: 31ms
memory: 116472kb
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:
38889 57353 46659 19709 34597 92781 5003 755 5025 25151 10557 9165 32119 14339 20477 20537 27295 2167 62227 695 30503 24081 146391 16323 75725 54363 17869 93083 40781 21643 26601 9831 36653 93499 172247 38037 2703 6021 6095 25145 9033 33191 39775 109133 82877 52933 118985 163601 85359 170933 14129 9...