//
// ROIGold.cpp
// Main calisma
//
// Created by Rakhman on 05/02/2019.
// Copyright © 2019 Rakhman. All rights reserved.
//
#include <cstring>
#include <vector>
#include <list>
#include <map>
#include <set>
#include <deque>
#include <stack>
#include <bitset>
#include <algorithm>
#include <functional>
#include <numeric>
#include <utility>
#include <sstream>
#include <iostream>
#include <iomanip>
#include <cstdio>
#include <queue>
#include <cmath>
#include <cstdlib>
#include <ctime>
#include <cassert>
#include <iterator>
#define ios ios_base::sync_with_stdio(0), cout.tie(0), cin.tie(0);
#define S second
#define F first
#define pb push_back
#define nl '\n'
#define NL cout << '\n';
#define EX exit(0)
#define all(s) s.begin(), s.end()
#define FOR(i, start, finish, k) for(int i = start; i <= finish; i += k)
const int MXN = 1e5 + 10;
const long long MNN = 1e6 + 200;
const long long MOD = 1e9 + 7;
const long long INF = 1e18;
const int OO = 1e9 + 500;
typedef long long llong;
typedef unsigned long long ullong;
using namespace std;
void istxt(bool yes){
if(yes == 1){
freopen("balancing.in", "r", stdin);
freopen("balancing.out", "w", stdout);
}else{
freopen("/Users/rakhmanabdirashov/Desktop/folder/Programming/Road2Master/Road2Master/input.txt", "r", stdin);
}
}
int n, q, cnt = 1, ans[MXN];
vector<int> xs, ys;
struct exam{
int a, b, c, ind;
}p[MXN], e[MXN];
bool cmp(exam a, exam b){
return a.c < b.c;
}
struct node{
node *l, *r;
int sum;
node(){
l = r = nullptr;
sum = 0;
}
};
typedef node* pnode;
pnode t[MXN];
int getsum(pnode v) { return (v == nullptr ? 0 : v -> sum); }
void updy(pnode &v, int tl, int tr, int posy, int x){
if(v == nullptr) v = new node();
if(tl == tr){
v -> sum += x;
return;
}
int tm = (tl + tr) / 2;
if(posy <= tm){
updy(v -> l, tl, tm, posy, x);
}else{
updy(v -> r, tm + 1, tr, posy, x);
}
v -> sum = getsum(v -> l) + getsum(v -> r);
}
void updx(int posx, int posy, int x){
for( ; posx < xs.size(); posx = (posx | (posx + 1))){
updy(t[posx], 0, ys.size() - 1, posy, x);
}
}
int gety(pnode v, int tl, int tr, int L, int R){
if(v == nullptr) return 0;
if(L <= tl && tr <= R) return v -> sum;
if(R < tl || tr < L) return 0;
int tm = (tl + tr) / 2;
return gety(v -> l, tl, tm, L, R) + gety(v -> r, tm + 1, tr, L, R);
}
int getx(int posx, int ly, int ry){
int sum = 0;
while(posx >= 0){
sum += gety(t[posx], 0, xs.size() - 1, ly, ry);
posx = (posx & (posx + 1)) - 1;
}
return sum;
}
int get(int lx, int rx, int ly, int ry){
return getx(rx, ly, ry) - getx(lx - 1, ly, ry);
}
int main () {
ios;
//istxt(0);
cin >> n >> q;
for(int i = 0; i < MXN; i++) t[i] = new node();
for(int i = 1; i <= n; i++){
cin >> p[i].a >> p[i].b;
xs.push_back(p[i].a);
ys.push_back(p[i].b);
p[i].c = p[i].a + p[i].b;
}
xs.push_back(1e9);
ys.push_back(1e9);
sort(xs.begin(), xs.end());
sort(ys.begin(), ys.end());
xs.erase(unique(xs.begin(), xs.end()), xs.end());
ys.erase(unique(ys.begin(), ys.end()), ys.end());
for(int i = 1; i <= n; i++){
p[i].a = lower_bound(xs.begin(), xs.end(), p[i].a) - xs.begin();
p[i].b = lower_bound(ys.begin(), ys.end(), p[i].b) - ys.begin();
updx(p[i].a, p[i].b, 1);
}
for(int i = 1; i <= q; i++){
cin >> e[i].a >> e[i].b >> e[i].c;
e[i].ind = i;
}
sort(e + 1, e + q + 1, cmp);
sort(p + 1, p + n + 1, cmp);
for(int i = 1; i <= q; i++){
while(cnt <= n && p[cnt].c < e[i].c){
updx(p[cnt].a, p[cnt].b, -1);
cnt++;
}
if(cnt > n) ans[e[i].ind] = 0;
else {
int a = lower_bound(xs.begin(), xs.end(), e[i].a) - xs.begin();
int b = lower_bound(ys.begin(), ys.end(), e[i].b) - ys.begin();
ans[e[i].ind] = get(a, xs.size() - 1, b, ys.size() - 1);
}
}
for(int i = 1; i <= q; i++){
cout << ans[i] << nl;
}
return 0;
}
Compilation message
examination.cpp: In function 'void updx(int, int, int)':
examination.cpp:102:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for( ; posx < xs.size(); posx = (posx | (posx + 1))){
~~~~~^~~~~~~~~~~
examination.cpp: In function 'void istxt(bool)':
examination.cpp:55:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
freopen("balancing.in", "r", stdin);
~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
examination.cpp:56:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
freopen("balancing.out", "w", stdout);
~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
examination.cpp:58:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
freopen("/Users/rakhmanabdirashov/Desktop/folder/Programming/Road2Master/Road2Master/input.txt", "r", stdin);
~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
9 ms |
4216 KB |
Output is correct |
| 2 |
Correct |
9 ms |
4216 KB |
Output is correct |
| 3 |
Incorrect |
9 ms |
4216 KB |
Output isn't correct |
| 4 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
1864 ms |
232264 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
1864 ms |
232264 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
9 ms |
4216 KB |
Output is correct |
| 2 |
Correct |
9 ms |
4216 KB |
Output is correct |
| 3 |
Incorrect |
9 ms |
4216 KB |
Output isn't correct |
| 4 |
Halted |
0 ms |
0 KB |
- |
