oj.uz

답안 #1033807

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1033807 2024-07-25T06:38:33 Z vjudge1 Examination (JOI19_examination) C++17
100 / 100
 337 ms 37632 KB 
#include<bits/stdc++.h>
#define ll long long
#define ull unsigned long long
#define ld double
#define pb push_back
#define pf push_front
#define vi vector<ll>
#define vii vector<vi>
#define pll pair<ll,ll>
#define vpll vector<pll>
#define all(a) a.begin(), a.end()
#define fi first
#define se second
using namespace std;
const ll mod = 1e9+7;   
const ll inf = 2e18;
const ll base = 31;
const ll blocksz = 320;
const ll N = 2e5+8;
ll n,q;
struct point{
    ll x,y,z,id;
} a[N];
struct Binary_Indexed_Tree{
    ll BIT[N]; 
    void update(ll i, ll x){
        while(i <= n+q){
            BIT[i] += x;
            i += (i&-i);
        }
    }
    ll get(ll i){
        ll ans = 0;
        while(i){
            ans += BIT[i];
            i -= (i&-i);
        }
        return ans;
    }
} bit;
ll ans[N];
void cdq(ll l, ll r){
    if(l == r) return;
    ll m = l+r>>1;
    cdq(l,m),cdq(m+1,r);
    vector<point> pts;
    vi reset;
    ll i = l, j = m+1, cnt = 0;
    while(i <= m && j <= r){
        if(a[i].y > a[j].y){
            if(a[i].id <= n) bit.update(a[i].z,1),cnt++,reset.pb(a[i].z);
            pts.pb(a[i++]);
        }
        else{
            if(a[j].id > n) ans[a[j].id] += cnt-bit.get(a[j].z);
            pts.pb(a[j++]);
        }
    }
    while(i <= m){
        if(a[i].id <= n) bit.update(a[i].z,1),cnt++,reset.pb(a[i].z);
        pts.pb(a[i++]);
    }
    while(j <= r){
        if(a[j].id > n) ans[a[j].id] += cnt-bit.get(a[j].z);
        pts.pb(a[j++]);
    }
    for (ll i = l; i <= r; ++i) a[i] = pts[i-l];
    for (ll i:reset) bit.update(i,-1);
}   
map<ll,ll> comp;
void solve(){
    cin >> n >> q;
    vi compress;
    for(ll i = 1; i <= n; i++){
        cin >> a[i].x >> a[i].y;
        a[i].id = i;
        a[i].z = a[i].x+a[i].y;
        compress.pb(a[i].z);
    }
    for(ll i = n+1; i <= n+q; i++){
        cin >> a[i].x >> a[i].y >> a[i].z;
        a[i].x--, a[i].y--, a[i].z--;
        a[i].id = i;
        compress.pb(a[i].z);
    }
    sort(all(compress));
    compress.erase(unique(all(compress)),compress.end());
    for(ll i = 1; i <= compress.size(); i++){
        comp[compress[i-1]] = i;
    }
    for(ll i = 1; i <= n+q; i++) a[i].z = comp[a[i].z];
    sort(a+1,a+n+q+1,[&](point x, point y){
        return x.x > y.x || (x.x == y.x && (x.y < y.y || (x.y == y.y && x.z < y.z)));
    });
    cdq(1,n+q);
    for(ll i = n+1; i <= n+q; i++){
        cout << ans[i] << '\n';
    }
}   
signed main(){
    ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
    if(fopen("test.inp","r")){
        freopen("test.inp","r",stdin);
        freopen("test.out","w",stdout);
    }
    ll T = 1;
    // cin >> T;
    while(T--){
        solve();
        cout << '\n';
    }
}

Compilation message

examination.cpp: In function 'void cdq(long long int, long long int)':
examination.cpp:44:13: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   44 |     ll m = l+r>>1;
      |            ~^~
examination.cpp: In function 'void solve()':
examination.cpp:88:21: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   88 |     for(ll i = 1; i <= compress.size(); i++){
      |                   ~~^~~~~~~~~~~~~~~~~~
examination.cpp: In function 'int main()':
examination.cpp:103:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
  103 |         freopen("test.inp","r",stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
examination.cpp:104:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
  104 |         freopen("test.out","w",stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
2.0 / 2.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 6 ms 1692 KB Output is correct
8 Correct 6 ms 1716 KB Output is correct
9 Correct 6 ms 1564 KB Output is correct
10 Correct 6 ms 1596 KB Output is correct
11 Correct 6 ms 1604 KB Output is correct
12 Correct 4 ms 1196 KB Output is correct
13 Correct 5 ms 1432 KB Output is correct
14 Correct 5 ms 1388 KB Output is correct
15 Correct 6 ms 1412 KB Output is correct
16 Correct 5 ms 1288 KB Output is correct
17 Correct 6 ms 1596 KB Output is correct
18 Correct 3 ms 1208 KB Output is correct

Subtask #2
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 237 ms 30092 KB Output is correct
2 Correct 219 ms 30168 KB Output is correct
3 Correct 215 ms 30164 KB Output is correct
4 Correct 198 ms 28884 KB Output is correct
5 Correct 193 ms 29008 KB Output is correct
6 Correct 141 ms 24300 KB Output is correct
7 Correct 206 ms 28648 KB Output is correct
8 Correct 197 ms 28680 KB Output is correct
9 Correct 186 ms 28544 KB Output is correct
10 Correct 196 ms 27876 KB Output is correct
11 Correct 174 ms 27864 KB Output is correct
12 Correct 162 ms 23524 KB Output is correct

Subtask #3
21.0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 237 ms 30092 KB Output is correct
2 Correct 219 ms 30168 KB Output is correct
3 Correct 215 ms 30164 KB Output is correct
4 Correct 198 ms 28884 KB Output is correct
5 Correct 193 ms 29008 KB Output is correct
6 Correct 141 ms 24300 KB Output is correct
7 Correct 206 ms 28648 KB Output is correct
8 Correct 197 ms 28680 KB Output is correct
9 Correct 186 ms 28544 KB Output is correct
10 Correct 196 ms 27876 KB Output is correct
11 Correct 174 ms 27864 KB Output is correct
12 Correct 162 ms 23524 KB Output is correct
13 Correct 262 ms 32268 KB Output is correct
14 Correct 252 ms 31448 KB Output is correct
15 Correct 217 ms 28524 KB Output is correct
16 Correct 246 ms 29652 KB Output is correct
17 Correct 245 ms 29584 KB Output is correct
18 Correct 153 ms 23512 KB Output is correct
19 Correct 275 ms 32240 KB Output is correct
20 Correct 275 ms 31648 KB Output is correct
21 Correct 265 ms 32220 KB Output is correct
22 Correct 174 ms 27860 KB Output is correct
23 Correct 184 ms 27864 KB Output is correct
24 Correct 153 ms 23564 KB Output is correct

Subtask #4
57.0 / 57.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 6 ms 1692 KB Output is correct
8 Correct 6 ms 1716 KB Output is correct
9 Correct 6 ms 1564 KB Output is correct
10 Correct 6 ms 1596 KB Output is correct
11 Correct 6 ms 1604 KB Output is correct
12 Correct 4 ms 1196 KB Output is correct
13 Correct 5 ms 1432 KB Output is correct
14 Correct 5 ms 1388 KB Output is correct
15 Correct 6 ms 1412 KB Output is correct
16 Correct 5 ms 1288 KB Output is correct
17 Correct 6 ms 1596 KB Output is correct
18 Correct 3 ms 1208 KB Output is correct
19 Correct 237 ms 30092 KB Output is correct
20 Correct 219 ms 30168 KB Output is correct
21 Correct 215 ms 30164 KB Output is correct
22 Correct 198 ms 28884 KB Output is correct
23 Correct 193 ms 29008 KB Output is correct
24 Correct 141 ms 24300 KB Output is correct
25 Correct 206 ms 28648 KB Output is correct
26 Correct 197 ms 28680 KB Output is correct
27 Correct 186 ms 28544 KB Output is correct
28 Correct 196 ms 27876 KB Output is correct
29 Correct 174 ms 27864 KB Output is correct
30 Correct 162 ms 23524 KB Output is correct
31 Correct 262 ms 32268 KB Output is correct
32 Correct 252 ms 31448 KB Output is correct
33 Correct 217 ms 28524 KB Output is correct
34 Correct 246 ms 29652 KB Output is correct
35 Correct 245 ms 29584 KB Output is correct
36 Correct 153 ms 23512 KB Output is correct
37 Correct 275 ms 32240 KB Output is correct
38 Correct 275 ms 31648 KB Output is correct
39 Correct 265 ms 32220 KB Output is correct
40 Correct 174 ms 27860 KB Output is correct
41 Correct 184 ms 27864 KB Output is correct
42 Correct 153 ms 23564 KB Output is correct
43 Correct 303 ms 37608 KB Output is correct
44 Correct 306 ms 37632 KB Output is correct
45 Correct 333 ms 37404 KB Output is correct
46 Correct 289 ms 37588 KB Output is correct
47 Correct 314 ms 37584 KB Output is correct
48 Correct 162 ms 23536 KB Output is correct
49 Correct 315 ms 37480 KB Output is correct
50 Correct 337 ms 37556 KB Output is correct
51 Correct 327 ms 37492 KB Output is correct
52 Correct 299 ms 37612 KB Output is correct
53 Correct 203 ms 30448 KB Output is correct