#include <bits/stdc++.h>
using namespace std;
#define n_l '\n'
#define dbg(...) cout << "[" << #__VA_ARGS__ << "]: "; cout << to_string(__VA_ARGS__) << endl
template <typename T, size_t N> int SIZE(const T (&t)[N]){ return N; } template<typename T> int SIZE(const T &t){ return t.size(); } string to_string(const string s, int x1=0, int x2=1e9){ return '"' + ((x1 < s.size()) ? s.substr(x1, x2-x1+1) : "") + '"'; } string to_string(const char* s) { return to_string((string) s); } string to_string(const bool b) { return (b ? "true" : "false"); } string to_string(const char c){ return string({c}); } template<size_t N> string to_string(const bitset<N> &b, int x1=0, int x2=1e9){ string t = ""; for(int __iii__ = min(x1,SIZE(b)), __jjj__ = min(x2, SIZE(b)-1); __iii__ <= __jjj__; ++__iii__){ t += b[__iii__] + '0'; } return '"' + t + '"'; } template <typename A, typename... C> string to_string(const A (&v), int x1=0, int x2=1e9, C... coords); int l_v_l_v_l = 0, t_a_b_s = 0; template <typename A, typename B> string to_string(const pair<A, B> &p) { l_v_l_v_l++; string res = "(" + to_string(p.first) + ", " + to_string(p.second) + ")"; l_v_l_v_l--; return res; } template <typename A, typename... C> string to_string(const A (&v), int x1, int x2, C... coords) { int rnk = rank<A>::value; string tab(t_a_b_s, ' '); string res = ""; bool first = true; if(l_v_l_v_l == 0) res += n_l; res += tab + "["; x1 = min(x1, SIZE(v)), x2 = min(x2, SIZE(v)); auto l = begin(v); advance(l, x1); auto r = l; advance(r, (x2-x1) + (x2 < SIZE(v))); for (auto e = l; e != r; e = next(e)) { if (!first) { res += ", "; } first = false; l_v_l_v_l++; if(e != l){ if(rnk > 1) { res += n_l; t_a_b_s = l_v_l_v_l; }; } else{ t_a_b_s = 0; } res += to_string(*e, coords...); l_v_l_v_l--; } res += "]"; if(l_v_l_v_l == 0) res += n_l; return res; } void dbgm(){;} template<typename Heads, typename... Tails> void dbgm(Heads H, Tails... T){ cout << to_string(H) << " | "; dbgm(T...); }
#define dbgm(...) cout << "[" << #__VA_ARGS__ << "]: "; dbgm(__VA_ARGS__); cout << endl
#define int long long int
#define MP make_pair
#define pb push_back
#define REP(i,n) for(int (i) = 0; (i) < (n); (i)++)
void fastio() {
ios_base::sync_with_stdio(false);
cin.tie(NULL);
}
const double EPS = 0.00001;
const int INF = 1e9+500;
const int N = 3e5+5;
const int M = 2e5+5;
const int ALPH = 26;
const int LGN = 25;
const int MOD = 1e9+7;
int n,m,q,K;
vector<array<int,2> > rints;
vector<int> go;
struct SegTree {
vector<int> data;
int sz;
SegTree(int sz) {
data.assign(4*(sz + 5), 0);
this->sz = sz;
}
void build(int tl, int tr, int v, vector<int> &init) {
if(tl == tr) {
data[v] = init[tl];
return;
}
int tm = (tl + tr) >> 1;
build(tl ,tm ,v*2, init);
build(tm + 1,tr ,v*2+1, init);
data[v] = max(data[v*2], data[v*2+1]);
}
void update(int tl, int tr, int v, int ind ,int val) {
if(tl == tr) {
data[v] = val;
return;
}
int tm = (tl + tr) >> 1;
if(ind <= tm) update(tl, tm, v*2, ind ,val);
else update(tm + 1, tr, v*2+1, ind, val);
data[v] = max(data[v*2], data[v*2+1]);
}
void update(int ind, int val) {
update(0, sz, 1, ind, val);
}
int query(int tl, int tr, int v, int l, int r) {
if(tl >= l && tr <= r) {
return data[v];
}
if(tl > r || tr < l) {
return 0;
}
int tm = (tl + tr) >> 1;
return max(query(tl, tm, v*2, l , r) , query(tm + 1, tr, v*2+1, l, r));
}
int query(int l, int r) {
if(l > r) return 0;
r = min(sz , r);
return query(0, sz, 1, l, r);
}
};
SegTree *st[LGN];
void calc_anc() {
for(int i = 0; i<LGN; i++) st[i] = new SegTree(n + 5);
st[0]->build(0, st[0]->sz, 1, go);
for(int k = 1; k<LGN; k++) {
for(int i = 1; i<=n; i++) {
int tmp = st[k - 1]->query(max(0ll, i - K + 1), i);
tmp = st[k - 1]->query(max(0ll, i - K + 1), tmp);
st[k]->update(i, tmp);
}
}
}
void prep_ints() {
go.assign(n+3, 0);
for(auto c :rints) {
go[c[0]] = max(go[c[0]], c[1]);
}
calc_anc();
}
int answer(int s, int t) {
int cur = s;
int ans = 1;
for(int i = LGN - 1; i>=0; i--) {
int tmp = st[i]->query(max(0ll, s - K + 1), cur);
if(tmp != 0 && tmp < t) {
cur = tmp;
ans += (1<<i);
}
}
cur = st[0]->query(max(0ll, s - K + 1), cur);
if(cur >= t) {
return ans;
}
return -1;
}
inline void solve() {
cin >> n >> K >> m;
for(int i = 0; i<m; i++) {
int l,r;
cin>>l>>r;
rints.pb({l, r});
}
prep_ints();
cin>>q;
for(int i = 0; i<q; i++) {
int s,t;
cin>>s>>t;
int ans = 0;
ans = answer(s, t);
cout<<ans<<"\n";
}
}
signed main() {
fastio();
int test = 1;
//cin>>test;
while(test--) {
solve();
}
}
Compilation message
Main.cpp: In function 'std::string to_string(std::string, int, int)':
Main.cpp:7:208: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
7 | template <typename T, size_t N> int SIZE(const T (&t)[N]){ return N; } template<typename T> int SIZE(const T &t){ return t.size(); } string to_string(const string s, int x1=0, int x2=1e9){ return '"' + ((x1 < s.size()) ? s.substr(x1, x2-x1+1) : "") + '"'; } string to_string(const char* s) { return to_string((string) s); } string to_string(const bool b) { return (b ? "true" : "false"); } string to_string(const char c){ return string({c}); } template<size_t N> string to_string(const bitset<N> &b, int x1=0, int x2=1e9){ string t = ""; for(int __iii__ = min(x1,SIZE(b)), __jjj__ = min(x2, SIZE(b)-1); __iii__ <= __jjj__; ++__iii__){ t += b[__iii__] + '0'; } return '"' + t + '"'; } template <typename A, typename... C> string to_string(const A (&v), int x1=0, int x2=1e9, C... coords); int l_v_l_v_l = 0, t_a_b_s = 0; template <typename A, typename B> string to_string(const pair<A, B> &p) { l_v_l_v_l++; string res = "(" + to_string(p.first) + ", " + to_string(p.second) + ")"; l_v_l_v_l--; return res; } template <typename A, typename... C> string to_string(const A (&v), int x1, int x2, C... coords) { int rnk = rank<A>::value; string tab(t_a_b_s, ' '); string res = ""; bool first = true; if(l_v_l_v_l == 0) res += n_l; res += tab + "["; x1 = min(x1, SIZE(v)), x2 = min(x2, SIZE(v)); auto l = begin(v); advance(l, x1); auto r = l; advance(r, (x2-x1) + (x2 < SIZE(v))); for (auto e = l; e != r; e = next(e)) { if (!first) { res += ", "; } first = false; l_v_l_v_l++; if(e != l){ if(rnk > 1) { res += n_l; t_a_b_s = l_v_l_v_l; }; } else{ t_a_b_s = 0; } res += to_string(*e, coords...); l_v_l_v_l--; } res += "]"; if(l_v_l_v_l == 0) res += n_l; return res; } void dbgm(){;} template<typename Heads, typename... Tails> void dbgm(Heads H, Tails... T){ cout << to_string(H) << " | "; dbgm(T...); }
| ~~~^~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
2 ms |
604 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
2 ms |
604 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
533 ms |
80856 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
700 ms |
80844 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1012 ms |
83092 KB |
Output is correct |
| 2 |
Correct |
1042 ms |
81608 KB |
Output is correct |
| 3 |
Correct |
1048 ms |
80592 KB |
Output is correct |
| 4 |
Correct |
1012 ms |
80284 KB |
Output is correct |
| 5 |
Incorrect |
948 ms |
79968 KB |
Output isn't correct |
| 6 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
2 ms |
604 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
