CVBB ACM Team

#include <bits/stdc++.h>
#define maxn 500086 
using namespace std;
 
int n, q, x, y;
int b[maxn][31], pos[maxn][31];//debug:数组开小调了一万年 
 
inline void insert(int x, int y){
	int z = y;
	for(int i = 30, j = 1 << 30;j;i--, j >>= 1){
		if(x & j){
			if(!b[y][i]){
				b[y][i] = x, pos[y][i] = z;
				break;
			}else{
				if(z > pos[y][i]) swap(x, b[y][i]), swap(z, pos[y][i]);
				x ^= b[y][i];
			}
		}
	}
}
 
inline int query(int l, int r){
	int ans = 0;
	for(int i = 30;~i;i--){
		//printf("%d %d %d--\n", i, b[r][i], pos[r][i]);
		if(pos[r][i] >= l && (ans ^ b[r][i]) > ans) ans ^= b[r][i];
	}
	return ans;
}
 
int main(){
	scanf("%d", &n);
	for(int i = 1;i <= n;i++){
		//for(int j = 0;j <= 30;j++) b[i][j] = b[i - 1][j], pos[i][j] = pos[i - 1][j];
		memcpy(b[i], b[i - 1], sizeof(b[i - 1])), memcpy(pos[i], pos[i - 1], sizeof(pos[i - 1]));
		scanf("%d", &x);
		insert(x, i);
	}
	scanf("%d", &q);
	while(q--){
		scanf("%d%d", &x, &y);
		printf("%d\n", query(x, y));
	}
}

#include <bits/stdc++.h>
#define maxn 100086
using namespace std;
 
const int p = 1e9 + 7;
 
vector<int> v[maxn]; 
int f[maxn][2];
int ans;
 
void dfs(int i){
	for(int j = 0;j < v[i].size();j++){
		int to = v[i][j];
		dfs(to);
		f[i][1] = (1ll * f[i][1] * (f[to][0] + f[to][1]) + 1ll * f[i][0] * f[to][1]) % p;
		f[i][0] = 1ll * f[i][0] * (f[to][0] + f[to][1]) % p;
	}	
}
 
int n, x;
 
int main(){
	scanf("%d", &n);
	for(int i = 2;i <= n;i++) scanf("%d", &x), v[++x].push_back(i);
	for(int i = 1;i <= n;i++) scanf("%d", &x), f[i][x] = 1;
	dfs(1);
	printf("%d", f[1][1]); 
} 

#include <bits/stdc++.h>
#define maxn 1086
#define maxm 105 
using namespace std;
 
const int p = 7340033;
 
int t;
int n, K;
int dep;
int f[maxn / 10][maxn], g[maxn / 10][maxn];
 
int main(){
	for(int i = 0;i < maxm;i++) f[i][0] = g[i][0] = 1;
	for(int i = 1;i < maxm;i++){
		for(int j = 1;j < maxn;j++){
			for(int k = 0;k < j;k++){
				f[i][j] += 1ll * g[i - 1][k] * g[i - 1][j - 1 - k] % p;
				if(f[i][j] >= p) f[i][j] -= p;
			}
			for(int k = 0;k <= j;k++){
				g[i][j] += 1ll * f[i][k] * f[i][j - k] % p;
				if(g[i][j] >= p) g[i][j] -= p;
			}
		}
	}
	scanf("%d", &t);
	while(t--){
		scanf("%d%d", &n, &K), dep = 0;
		while((n & 1) && n >= 3) ++dep, n >>= 1;
		printf("%d\n", f[dep][K]);
	}
}

#include <bits/stdc++.h>
#define maxn 100086
using namespace std;
 
typedef long long ll;
 
int n;
ll a[maxn], b[maxn], f[maxn];
int q[maxn], l, r;
 
inline double k(int i, int j){
	return 1.0 * (f[i] - f[j]) / (b[j] - b[i]);
}
 
int main(){
	scanf("%d", &n);
	for(int i = 1;i <= n;i++) scanf("%lld", &a[i]);
	for(int i = 1;i <= n;i++) scanf("%lld", &b[i]);
	f[1] = 0, q[0] = 1;
	for(int i = 2;i <= n;i++){
		while(l < r && k(q[l], q[l + 1]) <= a[i]) ++l;
		f[i] = f[q[l]] + a[i] * b[q[l]];
		//printf("%d %d %lld--\n", i, q[l], f[i]);
		while(l < r && k(q[r], q[r - 1]) >= k(q[r], i)) --r;
		q[++r] = i;
	}
	printf("%lld", f[n]);
}

#include <bits/stdc++.h>
#define maxn 100086
#define maxm 320
using namespace std;
 
int f[maxm][maxn];
int n, sn;
int opt, l, r, k;
int m, x;
deque<int> q[maxm];
int lastans;
 
int main(){
	scanf("%d", &n), sn = (int)sqrt(n);
	for(int i = 1;i <= n;i++){
		scanf("%d", &x);
		int ii = (i - 1) / sn;
		q[ii].push_back(x), ++f[ii][x];
	}
	scanf("%d", &m);
	while(m--){
		scanf("%d", &opt);
		if(opt == 1){
			scanf("%d%d", &l, &r);
			l = (l + lastans - 1) % n + 1, r = (r + lastans - 1) % n + 1;
			if(l > r) swap(l, r);
			int ll = (l - 1) / sn, rr = (r - 1) / sn, li = (l - 1) % sn, ri = (r - 1) % sn;
			//printf("%d %d %d %d--\n", ll, rr, li, ri);
			if(ll == rr){
				int x = q[ll][ri];
				q[ll].erase(q[ll].begin() + ri);
				q[ll].insert(q[ll].begin() + li, x);
			}else{
				int x = q[ll].back();q[ll].pop_back(), --f[ll][x];
				for(int i = ll + 1;i < rr;i++){
					q[i].push_front(x), ++f[i][x];
					x = q[i].back(), q[i].pop_back(), --f[i][x];
				}
				q[rr].push_front(x), ++f[rr][x];
				x = q[rr][ri + 1], --f[rr][x], q[rr].erase(q[rr].begin() + ri + 1);//debug:已经pushfront了所以下标都要+1 
				++f[ll][x], q[ll].insert(q[ll].begin() + li, x);
			}
		}else{
			scanf("%d%d%d", &l, &r, &k);
			l = (l + lastans - 1) % n + 1, r = (r + lastans - 1) % n + 1, k = (k + lastans - 1) % n + 1;
			if(l > r) swap(l, r);
			int ll = (l - 1) / sn, rr = (r - 1) / sn, li = (l - 1) % sn, ri = (r - 1) % sn;
			int ans = 0;
			if(ll == rr){
				for(int i = li;i <= ri;i++) ans += q[ll][i] == k; 
			}else{
				for(int i = ll + 1;i < rr;i++) ans += f[i][k];
				//printf("%d %d %d %d--\n", ll, rr, li, ri);
				for(int i = li;i < sn;i++) ans += q[ll][i] == k; 
				for(int i = 0;i <= ri;i++) ans += q[rr][i] == k; 
			}
			printf("%d\n", lastans = ans);
		}
	}
}

#include <bits/stdc++.h>
 
using namespace std;
 
int n;
int f[1 << 25];
char s[233];
int ans;
 
int main(){
	scanf("%d", &n);
	for(int i = 1;i <= n;i++){
		scanf("%s", s + 1);
		int x = 0;
		for(int j = 1;j <= 3;j++){
			x |= 1 << (s[j] - 'a');
		}
		for(int j = x;j;j = (j - 1) & x){
			if(__builtin_popcount(j) & 1) f[j]++;
			else f[j]--;
		}
	}
	for(int i=0;i<24;i++)
		for(int j=0;j<(1<<24);j++)
			if(j&(1<<i))f[j]+=f[j^(1<<i)];
	for(int i=0;i<(1<<24);i++)
		ans=ans^(f[i]*f[i]);
	printf("%d", ans);
}

#include <bits/stdc++.h>
#define maxn 100086
using namespace std;
 
struct Node{
	int son[2], val, pri, siz;
}t[maxn];
 
int cnt;
int root[maxn];
 
 
inline int rand()
{
    static int seed=12345;
    return seed=(int)seed*482711LL%2147483647;
}
 
inline int ls(int x){
	return t[x].son[0];
}
 
inline int rs(int x){
	return t[x].son[1];
}
 
void up(int x){
	t[x].siz = t[ls(x)].siz + t[rs(x)].siz + 1;
}
 
int newnode(int val){
	cnt++;
	t[cnt].val = val;
	t[cnt].pri = rand();
	t[cnt].siz = 1;
	return cnt;
}
 
void split(int x, int val, int &a, int &b){//x起始 val权值 a b为两个根编号 
	if(!x){
		a = b = 0;
		return;
	}
	if(t[x].val <= val) a = x, split(rs(x), val, t[x].son[1], b);
	else b = x, split(ls(x), val, a, t[x].son[0]);
	up(x);
} 
 
int merge(int x, int y){//返回根编号 
	if(x == 0 || y == 0) return x + y;
	if(t[x].pri > t[y].pri){
		t[x].son[1] = merge(rs(x), y);
		up(x);
		return x;
	}else{
		t[y].son[0] = merge(x, ls(y));
		up(y);
		return y;
	}
} 
 
int n, k;
 
struct N{
	int x, r, q;
}a[maxn];
 
inline bool cmp(N x, N y){
	return x.r > y.r;
}
 
long long ans;
 
int b[maxn], n0;
int A, B, C, D;
 
int main(){
	scanf("%d%d", &n, &k);
	for(int i = 1;i <= n;i++) scanf("%d%d%d", &a[i].x, &a[i].r, &a[i].q), b[i] = a[i].q;
	sort(a + 1, a + 1 + n, cmp); 
	sort(b + 1, b + 1 + n);
	n0 = unique(b + 1, b + 1 + n) - (b + 1);
	for(int i = 1;i <= n;i++){
		int x = lower_bound(b + 1, b + 1 + n0, a[i].q) - b;
		for(int j = x;j <= n0 && b[j] - b[x] <= k;j++){
			split(root[j], a[i].x - a[i].r - 1, A, B);
			split(B, a[i].x + a[i].r, C, D);
			ans += t[C].siz;
			root[j] = merge(A, merge(C, D));
		}
		for(int j = x - 1;j && b[x] - b[j] <= k;j--){
			split(root[j], a[i].x - a[i].r - 1, A, B);
			split(B, a[i].x + a[i].r, C, D);
			ans += t[C].siz;
			root[j] = merge(A, merge(C, D));
		}
		split(root[x], a[i].x, A, B);
		root[x] = merge(A, merge(newnode(a[i].x), B));
	}
	printf("%lld", ans);
}