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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#176613#6427. Just Another Game of StoneshazeWA 255ms78208kbC++233.5kb2023-09-11 20:28:062023-09-11 20:28:06

Judging History

你现在查看的是最新测评结果

  • [2023-09-11 20:28:06]
  • 评测
  • 测评结果:WA
  • 用时:255ms
  • 内存:78208kb
  • [2023-09-11 20:28:06]
  • 提交

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 = 1200999;
const int itinf = 2000000000;
int n, m;
struct node{
	int bsum[31];
	int xorsum, mn, smn, len, tag;
	node(){}
}t[N];

int mdcnt = 0;

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);
	
	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,0,30)t[x].bsum[i] = t[x << 1].bsum[i] + t[x << 1 | 1].bsum[i];
}

void operate(int x,int lim){
	if(t[x].mn >= lim)return;
	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,0,30){
		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,0,30){
			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;
		}
		if(t[x].tag)pushdown(x);
		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(t[x].tag && l != r)pushdown(x);
	int mid = (l + r) >> 1;//++ mdcnt;
	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;//++ mdcnt;
	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;
}

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 0ms
memory: 3928kb

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
Wrong Answer
time: 255ms
memory: 78208kb

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
34617
133367
5003
755
16087
25151
14051
12263
33399
14339
41869
21117
95175
2167
64571
737
32093
25031
142849
17335
75695
56261
17869
93025
40781
22037
31645
9831
36653
33519
185485
39295
2703
6067
6095
25369
8819
35713
39775
110527
147775
53741
120497
159701
99605
172391
141...

result:

wrong answer 6th numbers differ - expected: '138247', found: '133367'