#include <bits/stdc++.h>
using namespace std;
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;
template<typename T> using ordered_set = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
template<typename T, typename U> using ordered_map = tree<T, U, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
typedef long long ll;
typedef long double ld;
typedef double db;
typedef string str;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;
typedef vector<int> vi;
typedef vector<ll> vll;
typedef vector<pii> vpii;
typedef vector<pll> vpll;
typedef vector<str> vstr;
#define FOR(i,j,k,in) for(int i=(j); i < (k);i+=in)
#define FORD(i,j,k,in) for(int i=(j); i >=(k);i-=in)
#define REP(i,b) FOR(i,0,b,1)
#define REPD(i,b) FORD(i,b,0,1)
#define pb push_back
#define mp make_pair
#define ff first
#define ss second
#define all(x) begin(x), end(x)
#define rsz resize
const double EPS = 1e-9;
const int MOD = 1e9+7; // 998244353;
const ll INFF = 1e18;
const int INF = 1e9;
const ld PI = acos((ld)-1);
const vi dy = {1, 0, -1, 0, -1, 1, 1, -1};
const vi dx = {0, 1, 0, -1, -1, 1, -1, 1};
#ifdef DEBUG
#define DBG if(1)
#else
#define DBG if(0)
#endif
#define dbg(x) cout << "(" << #x << " : " << x << ")" << endl;
// ostreams
template <class T, class U>
ostream& operator<<(ostream& out, const pair<T, U> &par) {out << "[" << par.first << ";" << par.second << "]"; return out;}
template <class T>
ostream& operator<<(ostream& out, const set<T> &cont) { out << "{"; for( const auto &x:cont) out << x << ", "; out << "}"; return out; }
template <class T, class U>
ostream& operator<<(ostream& out, const map<T, U> &cont) {out << "{"; for( const auto &x:cont) out << x << ", "; out << "}"; return out; }
template<class T>
ostream& operator<<(ostream& out, const vector<T> &v){ out << "["; REP(i, v.size()) out << v[i] << ", "; out << "]"; return out;}
// istreams
template<class T>
istream& operator>>(istream& in, vector<T> &v){ for(auto &x : v) in >> x; return in; }
template<class T, class U>
istream& operator>>(istream& in, pair<T, U> &p){ in >> p.ff >> p.ss; return in; }
//searches
template<typename T, typename U>
T bsl(T lo, T hi, U f){ hi++; T mid; while(lo < hi){ mid = (lo + hi)/2; f(mid) ? hi = mid : lo = mid+1; } return lo; }
template<typename U>
double bsld(double lo, double hi, U f, double p = 1e-9){ int r = 3 + (int)log2((hi - lo)/p); double mid; while(r--){ mid = (lo + hi)/2; f(mid) ? hi = mid : lo = mid; } return (lo + hi)/2; }
template<typename T, typename U>
T bsh(T lo, T hi, U f){ lo--; T mid; while(lo < hi){ mid = (lo + hi + 1)/2; f(mid) ? lo = mid : hi = mid-1; } return lo; }
template<typename U>
double bshd(double lo, double hi, U f, double p = 1e-9){ int r = 3+(int)log2((hi - lo)/p); double mid; while(r--){ mid = (lo + hi)/2; f(mid) ? lo = mid : hi = mid; } return (lo + hi)/2; }
// some more utility functions
template<typename T>
pair<T, int> get_min(vector<T> &v){ typename vector<T> :: iterator it = min_element(v.begin(), v.end()); return mp(*it, it - v.begin());}
template<typename T>
pair<T, int> get_max(vector<T> &v){ typename vector<T> :: iterator it = max_element(v.begin(), v.end()); return mp(*it, it - v.begin());}
template<typename T> bool ckmin(T& a, const T& b){return b < a ? a = b , true : false;}
template<typename T> bool ckmax(T& a, const T& b){return b > a ? a = b, true : false;}
class segtree{
public:
vi tree;
vi lchild; vi rchild;
int n;
void create_node(int val){
tree.pb(val); lchild.pb(-1); rchild.pb(-1);
}
void push(int v){
if(rchild[v] == -1){
create_node(-INF); rchild[v] = tree.size()-1;
}
if(lchild[v] == -1){
create_node(-INF); lchild[v] = tree.size()-1;
}
}
segtree(int sz){
n = 1; while(n < sz) n*=2;
create_node(-INF);
}
void update(int pos, int val, int b, int e, int v = 1) {
if(v == 1) b = 0, e = n;
if(b + 1 == e && b == pos) tree[v] = val;
push(v);
int mid = (b + e) / 2;
if(pos < mid) update(pos, val, b, mid, lchild[v]);
else update(pos, val, mid, e, rchild[v]);
tree[v] = max(tree[lchild[v]], tree[rchild[v]]);
}
int query(int l, int r, int b, int e, int v = 1){
if(v == 1) b = 0, e = n;
if(b >= r || e <= l) return -INF;
if(b >= l && e <= r) return tree[v];
push(v);
int mid = (b + e) / 2;
return max(query(l, r, b, mid, lchild[v]), query(l, r, mid, e, rchild[v]));
}
};
struct AcAutomaton{
vector<tuple<string, int, int>> queries;
int n, q;
string s;
void read_in(){
cin >> n >> q;
cin >> s;
REP(j, q){
string type; cin >> type;
if(type == "toggle"){
int a; cin >> a; --a;
queries.pb(make_tuple(type, a, 0));
}
else{
int a, b; cin >> a >> b; --a; --b;
queries.pb(make_tuple(type, a, b));
}
}
}
void solve_subtask1(){
vector<string> strings;
strings.pb(s);
REP(j, q){
tuple<string, int, int> query = queries[j];
if(get<0>(query) == "toggle"){
int id = get<1>(query);
if(s[id] == '1') s[id] = '0';
else s[id] = '1';
}
else{
int ans = 0;
int l = get<1>(query);
int r = get<2>(query);
REP(i, strings.size()){
string tmp = strings[i];
bool can = true;
FOR(j, l, r, 1){
if(tmp[j] == '0') can = false;
}
if(can) ans++;
}
cout << ans << endl;
}
strings.pb(s);
}
}
void solve_subtask2(){
vi prev(n, INF);
vi cnt(n, 0);
REP(i, s.length())
if(s[i] == '1') prev[i] = -1;
REP(j, q){
tuple<string, int, int> query = queries[j];
if(get<0>(query) == "toggle"){
int id = get<1>(query);
if(s[id] == '1'){
cnt[id] += (j - prev[id]);
prev[id] = INF;
s[id] = '0';
}
else{
prev[id] = j;
s[id] = '1';
}
}
else{
int id = get<1>(query);
int ans = 0;
if(s[id] == '1') {
ans += j - prev[id];
}
ans += cnt[id];
cout << ans << endl;
}
}
}
void solve(){
if(n <= 100 && q <= 100) solve_subtask1();
else{
bool sub2 = true;
REP(i, q) if(get<0>(queries[i]) == "query" && get<1>(queries[i]) + 1 != get<2>(queries[i])) sub2 = false;
if(sub2) solve_subtask2();
}
}
};
int main(){
ios_base::sync_with_stdio(false);
cin.tie(NULL); cout.tie(NULL);
int tcase = 1;
while(tcase--){
AcAutomaton solver;
solver.read_in();
solver.solve();
}
return 0;
}
Compilation message
street_lamps.cpp: In member function 'void AcAutomaton::solve_subtask1()':
street_lamps.cpp:26:40: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::__cxx11::basic_string<char> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
26 | #define FOR(i,j,k,in) for(int i=(j); i < (k);i+=in)
| ^
street_lamps.cpp:28:18: note: in expansion of macro 'FOR'
28 | #define REP(i,b) FOR(i,0,b,1)
| ^~~
street_lamps.cpp:154:17: note: in expansion of macro 'REP'
154 | REP(i, strings.size()){
| ^~~
street_lamps.cpp: In member function 'void AcAutomaton::solve_subtask2()':
street_lamps.cpp:26:40: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
26 | #define FOR(i,j,k,in) for(int i=(j); i < (k);i+=in)
| ^
street_lamps.cpp:28:18: note: in expansion of macro 'FOR'
28 | #define REP(i,b) FOR(i,0,b,1)
| ^~~
street_lamps.cpp:170:9: note: in expansion of macro 'REP'
170 | REP(i, s.length())
| ^~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
384 KB |
Output is correct |
| 2 |
Correct |
0 ms |
384 KB |
Output is correct |
| 3 |
Correct |
1 ms |
384 KB |
Output is correct |
| 4 |
Correct |
1 ms |
384 KB |
Output is correct |
| 5 |
Correct |
1 ms |
384 KB |
Output is correct |
| 6 |
Correct |
1 ms |
384 KB |
Output is correct |
| 7 |
Correct |
1 ms |
384 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
433 ms |
20940 KB |
Output is correct |
| 2 |
Correct |
444 ms |
24440 KB |
Output is correct |
| 3 |
Correct |
447 ms |
24788 KB |
Output is correct |
| 4 |
Correct |
475 ms |
26280 KB |
Output is correct |
| 5 |
Correct |
534 ms |
26412 KB |
Output is correct |
| 6 |
Correct |
385 ms |
26020 KB |
Output is correct |
| 7 |
Correct |
789 ms |
26920 KB |
Output is correct |
| 8 |
Correct |
790 ms |
26920 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
1 ms |
384 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
1 ms |
384 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
384 KB |
Output is correct |
| 2 |
Correct |
0 ms |
384 KB |
Output is correct |
| 3 |
Correct |
1 ms |
384 KB |
Output is correct |
| 4 |
Correct |
1 ms |
384 KB |
Output is correct |
| 5 |
Correct |
1 ms |
384 KB |
Output is correct |
| 6 |
Correct |
1 ms |
384 KB |
Output is correct |
| 7 |
Correct |
1 ms |
384 KB |
Output is correct |
| 8 |
Correct |
433 ms |
20940 KB |
Output is correct |
| 9 |
Correct |
444 ms |
24440 KB |
Output is correct |
| 10 |
Correct |
447 ms |
24788 KB |
Output is correct |
| 11 |
Correct |
475 ms |
26280 KB |
Output is correct |
| 12 |
Correct |
534 ms |
26412 KB |
Output is correct |
| 13 |
Correct |
385 ms |
26020 KB |
Output is correct |
| 14 |
Correct |
789 ms |
26920 KB |
Output is correct |
| 15 |
Correct |
790 ms |
26920 KB |
Output is correct |
| 16 |
Incorrect |
1 ms |
384 KB |
Output isn't correct |
| 17 |
Halted |
0 ms |
0 KB |
- |
