#include "circuit.h"
#include <cmath>
#include <algorithm>
#include <vector>
#include <iostream>
using namespace std;
typedef long long ll;
int NN, MM;
const int N = 2e5 + 10, P = 1000002022;
int p[N], d[N];
int lazy[4 * N];
int a[N];
ll pref[N];
pair <ll, ll> tree[4 * N];
ll tree2[4 * N];
ll binpow(ll a, ll n) {
if (n == 0) return 1;
if (n % 2 == 0) {
ll u = binpow(a, n / 2);
return (u * u) % P;
}
return (a * binpow(a, n - 1)) % P;
}
bool ch = true;
void pushh(int v, int tl, int tr) {
if (lazy[v]) {
lazy[v] = 0;
if (tl != tr) {
lazy[2 * v] = (lazy[2 * v] + 1) % 2;
lazy[2 * v + 1] = (lazy[2 * v + 1] + 1) % 2;
swap(tree[2 * v].first, tree[2 * v].second);
swap(tree[2 * v + 1].first, tree[2 * v + 1].second);
}
}
}
void build_tree(int v, int tl, int tr) {
if (tl == tr) {
if (a[tl] == 1) tree[v] = { 1, 0 };
else tree[v] = { 0, 1 };
}
else {
int tm = (tl + tr) / 2;
build_tree(2 * v, tl, tm);
build_tree(2 * v + 1, tm + 1, tr);
ll a = tree[2 * v].first, b = tree[2 * v].second, c = tree[2 * v + 1].first, d = tree[2 * v + 1].second;
tree[v].first = 2 * a * c + a * d + b * c;
tree[v].second = 2 * b * d + a * d + b * c;
tree[v].first %= P;
tree[v].second %= P;
}
}
void update(int v, int tl, int tr, int l, int r) {
if (tl > r || tr < l) return;
if (tl >= l && tr <= r) {
lazy[v] = (lazy[v] + 1) % 2;
swap(tree[v].first, tree[v].second);
return;
}
pushh(v, tl, tr);
int tm = (tl + tr) / 2;
update(2 * v, tl, tm, l, r);
update(2 * v + 1, tm + 1, tr, l, r);
ll a = tree[2 * v].first, b = tree[2 * v].second, c = tree[2 * v + 1].first, d = tree[2 * v + 1].second;
tree[v].first = 2 * a * c + a * d + b * c;
tree[v].second = 2 * b * d + a * d + b * c;
tree[v].first %= P;
tree[v].second %= P;
}
void pushh2(int v, int tl, int tr) {
if (lazy[v]) {
lazy[v] = 0;
if (tl != tr) {
lazy[2 * v] = (lazy[2 * v] + 1) % 2;
lazy[2 * v + 1] = (lazy[2 * v + 1] + 1) % 2;
int tm = (tl + tr) / 2;
ll u = pref[tm];
if (tl) u -= pref[tl - 1];
u %= P;
tree2[2 * v] = (u + P - tree2[2 * v]) % P;
u = pref[tr] - pref[tm];
u %= P;
tree2[2 * v + 1] = (u + P - tree2[2 * v + 1]) % P;
}
}
}
void build_tree2(int v, int tl, int tr) {
if (tl == tr) {
if (a[tl]) {
tree2[v] = pref[tl];
if (tl) tree2[v] -= pref[tl - 1];
}
tree2[v] %= P;
}
else {
int tm = (tl + tr) / 2;
build_tree2(2 * v, tl, tm);
build_tree2(2 * v + 1, tm + 1, tr);
tree2[v] = tree2[2 * v] + tree2[2 * v + 1];
tree2[v] %= P;
}
}
void update2(int v, int tl, int tr, int l, int r) {
if (tl > r || tr < l) return;
if (tl >= l && tr <= r) {
lazy[v] = (lazy[v] + 1) % 2;
ll u = pref[tr];
if (tl) u -= pref[tl - 1];
u %= P;
tree2[v] = (u - tree2[v] + P) % P;
return;
}
pushh2(v, tl, tr);
int tm = (tl + tr) / 2;
update2(2 * v, tl, tm, l, r);
update2(2 * v + 1, tm + 1, tr, l, r);
tree2[v] = tree2[2 * v] + tree2[2 * v + 1];
tree2[v] %= P;
}
void init(int N, int M, std::vector<int> P, std::vector<int> A) {
NN = N, MM = M;
for (int i = 0; i < N + M - 1; i++) {
p[i] = P[i];
if (i == 0) d[0] = 0;
if (i > 0 && p[i] != (i - 1) / 2) ch = false;if (i)
d[i] = d[P[i]] + 1;
}
for (int i = 0; i < M; i++) {
a[i] = A[i];
}
if (M != N + 1) ch = false;
int u = log2(M);
if ((1 << u) != M) ch = false;
if (ch) build_tree(1, 0, M - 1);
else {
for (int i = 0; i < M; i++) {
pref[i] = binpow(2, N - d[i + N]);
if (i) pref[i] += pref[i - 1];
}
for (int i = 0; i < M; i++) {if(A[i]) update2(1,0,M-1,i,i)
}
}
}
int count_ways(int L, int R) {
if (ch) {
update(1, 0, MM - 1, L - NN, R - NN);
return tree[1].first;
}
else {
update2(1, 0, MM - 1, L - NN, R - NN);
return tree2[1];
}
}
Compilation message
circuit.cpp: In function 'void init(int, int, std::vector<int>, std::vector<int>)':
circuit.cpp:125:3: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
125 | if (i > 0 && p[i] != (i - 1) / 2) ch = false;if (i)
| ^~
circuit.cpp:125:48: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
125 | if (i > 0 && p[i] != (i - 1) / 2) ch = false;if (i)
| ^~
circuit.cpp:140:62: error: expected ';' before '}' token
140 | for (int i = 0; i < M; i++) {if(A[i]) update2(1,0,M-1,i,i)
| ^
| ;
141 | }
| ~
