#define _CRT_SECURE_NO_WARNINGS
#include <bits/stdc++.h>
//#include "temp.cpp"
#include <cstdio>
using namespace std;
#ifndef ONLINE_JUDGE
#define dbg(x) cerr << #x <<" "; print(x); cerr << endl;
#else
#define dbg(x)
#endif
#define sz(x) (int)x.size()
#define len(x) (int)x.length()
#define all(x) (x).begin(), (x).end()
#define rall(x) (x).rbegin(), (x).rend()
#define clr(x) (x).clear()
#define uniq(x) x.resize(unique(all(x)) - x.begin());
#define blt __builtin_popcount
#define pb push_back
#define popf pop_front
#define popb pop_back
#define ld long double
#define ll long long
void print(long long t) {cerr << t;}
void print(int t) {cerr << t;}
void print(string t) {cerr << t;}
void print(char t) {cerr << t;}
void print(double t) {cerr << t;}
void print(long double t) {cerr << t;}
void print(unsigned long long t) {cerr << t;}
#include <ext/pb_ds/assoc_container.hpp>
using namespace __gnu_pbds;
#define nl '\n'
// Indexed Set
template <class T> using Tree = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
template <class T, class V> void print(pair <T, V> p);
template <class T> void print(vector <T> v);
template <class T> void print(set <T> v);
template <class T, class V> void print(map <T, V> v);
template <class T> void print(multiset <T> v);
template <class T, class V> void print(T v[],V n) {cerr << "["; for(int i = 0; i < n; i++) {print(v[i]); cerr << " "; } cerr << "]";}
template <class T, class V> void print(pair <T, V> p) {cerr << "{"; print(p.first); cerr << ","; print(p.second); cerr << "}";}
template <class T> void print(vector <T> v) {cerr << "[ "; for (T i : v) {print(i); cerr << " ";} cerr << "]";}
// template <class T> void print(vector <T> v) {cerr << "[ "; for (T i : v) {print(i); cerr << " ";} cerr << "]";}
template <class T> void print(set <T> v) {cerr << "[ "; for (T i : v) {print(i); cerr << " ";} cerr << "]";}
template <class T> void print(multiset <T> v) {cerr << "[ "; for (T i : v) {print(i); cerr << " ";} cerr << "]";}
template <class T> void print(Tree <T> v) {cerr << "[ "; for (T i : v) {print(i); cerr << " ";} cerr << "]";}
template <class T, class V> void print(map <T, V> v) {cerr << "[ "; for (auto i : v) {print(i); cerr << " ";} cerr << "]";}
template <class T> void print(deque <T> v) {cerr << "[ "; for (T i : v) {print(i); cerr << " ";} cerr << "]";}
// for random generations
mt19937 myrand(chrono::steady_clock::now().time_since_epoch().count());
// mt19937 myrand(131);
// for grid problems
int dx[8] = {-1,0,1,0,1,-1,1,-1};
int dy[8] = {0,1,0,-1,1,1,-1,-1};
// lowest / (1 << 17) >= 1e5 / (1 << 18) >= 2e5 / (1 << 21) >= 1e6
void fastIO() {
ios_base::sync_with_stdio(false);
cin.tie(nullptr); cout.tie(nullptr);
}
// file in/out
void setIO(string str = "") {
fastIO();
if(str == "input") {
freopen("input.txt", "r", stdin);
freopen("output.txt", "w", stdout);
} else if(str != "") {
freopen((str + ".in").c_str(), "r", stdin);
freopen((str + ".out").c_str(), "w", stdout);
}
}
const int N = 5e5 + 10;
vector<pair<pair<long long, long long>, int>> adj[N];
vector<long long> vi[N];
int n, q;
struct fenwick2 {
int n;
vector<long long> tr;
void init(int m) {
n = m, tr.assign(m + 1, 0);
}
void upd(int u, long long value) {
while(u <= n) {
tr[u] += value;
u += u & (-u);
}
}
long long qry(int u) {
long long s = 0;
while(u > 0) {
s += tr[u];
u -= u & (-u);
}
return s;
}
long long sum(int l, int r) {
return qry(r) - qry(l - 1);
}
} fft[N];
struct fenwick {
int n;
// vector<int> tr;
void init(int m) {
m += 2
n = m, tr.assign(m + 1, 0);
}
void upd(int u, long long value) {
while(u <= n) {
auto it = lower_bound(all(vi[u]), value);
if(it != vi[u].end()) {
int curr = it - vi[u].begin() + 1;
fft[u].upd(curr, 1);
}
u += u & (-u);
}
}
void add(int u, long long value) {
while(u <= n) {
vi[u].push_back(value);
u += u & (-u);
}
}
long long qry(int u, long long up) {
long long s = 0;
while(u > 0) {
auto it = lower_bound(all(vi[u]), up);
if(it != vi[u].end()) {
int curr = it - vi[u].begin() + 1;
s += fft[u].sum(curr, sz(fft[u].tr) - 1);
}
u -= u & (-u);
}
return s;
}
long long sum(int l, int r, long long value) {
return qry(r, value) - qry(l - 1, value);
}
} ft;
void solve_() {
cin >> n >> q;
vector<pair<long long, pair<long long, long long>>> vec;
vector<int> compress;
for(int i = 1; i <= n; i++) {
long long a, b; cin >> a >> b;
vec.push_back({a + b, {a, b}});
compress.push_back(a);
compress.push_back(b);
}
sort(all(vec));
// sort(all(compress));
// uniq(compress);
ft.init(N + 1);
for(auto i: vec) {
ft.add(i.second.first, i.second.second);
}
for(int i = 0; i < N; i++) {
sort(all(vi[i]));
uniq(vi[i]);
fft[i].init(sz(vi[i]) + 2);
}
for(int i = 1; i <= q; i++) {
long long x, y, z; cin >> x >> y >> z;
auto it = lower_bound(all(vec), make_pair(z, make_pair(0ll, 0ll)));
if(it != vec.end()) {
adj[it - vec.begin()].push_back({{x, y}, i});
}
}
vector<long long> answ(q + 1, 0);
for(int i = n - 1; i >= 0; i--) {
ft.upd(vec[i].second.first, vec[i].second.second);
for(auto j: adj[i]) {
answ[j.second] = ft.sum(j.first.first, N - 1, j.first.second);
}
}
for(int i = 1; i <= q; i++) {
cout << answ[i] << '\n';
}
}
int main() {
setIO();
auto solve = [&](int test_case)-> void {
for(int i = 1; i <= test_case; i++) {
solve_();
}
};
int test_cases = 1;
// cin >> test_cases;
solve(test_cases);
return 0;
}
Compilation message
examination.cpp: In member function 'void fenwick::init(int)':
examination.cpp:122:11: error: expected ';' before 'n'
122 | m += 2
| ^
| ;
123 | n = m, tr.assign(m + 1, 0);
| ~
examination.cpp: In function 'void setIO(std::string)':
examination.cpp:76:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
76 | freopen("input.txt", "r", stdin);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
examination.cpp:77:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
77 | freopen("output.txt", "w", stdout);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
examination.cpp:79:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
79 | freopen((str + ".in").c_str(), "r", stdin);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
examination.cpp:80:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
80 | freopen((str + ".out").c_str(), "w", stdout);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
