oj.uz

답안 #998052

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
998052 2024-06-13T08:54:00 Z vjudge1 Examination (JOI19_examination) C++17
100 / 100
 328 ms 39396 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 1 ms 4440 KB Output is correct
2 Correct 1 ms 4444 KB Output is correct
3 Correct 1 ms 4444 KB Output is correct
4 Correct 1 ms 4444 KB Output is correct
5 Correct 1 ms 2396 KB Output is correct
6 Correct 1 ms 2396 KB Output is correct
7 Correct 10 ms 5276 KB Output is correct
8 Correct 7 ms 3368 KB Output is correct
9 Correct 7 ms 5276 KB Output is correct
10 Correct 6 ms 3388 KB Output is correct
11 Correct 6 ms 5292 KB Output is correct
12 Correct 4 ms 5044 KB Output is correct
13 Correct 5 ms 3228 KB Output is correct
14 Correct 6 ms 5212 KB Output is correct
15 Correct 5 ms 3228 KB Output is correct
16 Correct 5 ms 5180 KB Output is correct
17 Correct 8 ms 5316 KB Output is correct
18 Correct 3 ms 3000 KB Output is correct

Subtask #2
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 229 ms 31000 KB Output is correct
2 Correct 252 ms 30376 KB Output is correct
3 Correct 263 ms 30644 KB Output is correct
4 Correct 220 ms 30420 KB Output is correct
5 Correct 216 ms 30640 KB Output is correct
6 Correct 196 ms 26712 KB Output is correct
7 Correct 226 ms 30936 KB Output is correct
8 Correct 196 ms 31380 KB Output is correct
9 Correct 216 ms 31696 KB Output is correct
10 Correct 215 ms 28992 KB Output is correct
11 Correct 193 ms 30784 KB Output is correct
12 Correct 165 ms 25464 KB Output is correct

Subtask #3
21.0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 229 ms 31000 KB Output is correct
2 Correct 252 ms 30376 KB Output is correct
3 Correct 263 ms 30644 KB Output is correct
4 Correct 220 ms 30420 KB Output is correct
5 Correct 216 ms 30640 KB Output is correct
6 Correct 196 ms 26712 KB Output is correct
7 Correct 226 ms 30936 KB Output is correct
8 Correct 196 ms 31380 KB Output is correct
9 Correct 216 ms 31696 KB Output is correct
10 Correct 215 ms 28992 KB Output is correct
11 Correct 193 ms 30784 KB Output is correct
12 Correct 165 ms 25464 KB Output is correct
13 Correct 294 ms 32700 KB Output is correct
14 Correct 311 ms 33644 KB Output is correct
15 Correct 230 ms 30572 KB Output is correct
16 Correct 257 ms 32072 KB Output is correct
17 Correct 259 ms 32688 KB Output is correct
18 Correct 164 ms 26804 KB Output is correct
19 Correct 290 ms 34004 KB Output is correct
20 Correct 310 ms 33984 KB Output is correct
21 Correct 284 ms 33764 KB Output is correct
22 Correct 204 ms 30012 KB Output is correct
23 Correct 194 ms 30916 KB Output is correct
24 Correct 150 ms 25884 KB Output is correct

Subtask #4
57.0 / 57.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 4440 KB Output is correct
2 Correct 1 ms 4444 KB Output is correct
3 Correct 1 ms 4444 KB Output is correct
4 Correct 1 ms 4444 KB Output is correct
5 Correct 1 ms 2396 KB Output is correct
6 Correct 1 ms 2396 KB Output is correct
7 Correct 10 ms 5276 KB Output is correct
8 Correct 7 ms 3368 KB Output is correct
9 Correct 7 ms 5276 KB Output is correct
10 Correct 6 ms 3388 KB Output is correct
11 Correct 6 ms 5292 KB Output is correct
12 Correct 4 ms 5044 KB Output is correct
13 Correct 5 ms 3228 KB Output is correct
14 Correct 6 ms 5212 KB Output is correct
15 Correct 5 ms 3228 KB Output is correct
16 Correct 5 ms 5180 KB Output is correct
17 Correct 8 ms 5316 KB Output is correct
18 Correct 3 ms 3000 KB Output is correct
19 Correct 229 ms 31000 KB Output is correct
20 Correct 252 ms 30376 KB Output is correct
21 Correct 263 ms 30644 KB Output is correct
22 Correct 220 ms 30420 KB Output is correct
23 Correct 216 ms 30640 KB Output is correct
24 Correct 196 ms 26712 KB Output is correct
25 Correct 226 ms 30936 KB Output is correct
26 Correct 196 ms 31380 KB Output is correct
27 Correct 216 ms 31696 KB Output is correct
28 Correct 215 ms 28992 KB Output is correct
29 Correct 193 ms 30784 KB Output is correct
30 Correct 165 ms 25464 KB Output is correct
31 Correct 294 ms 32700 KB Output is correct
32 Correct 311 ms 33644 KB Output is correct
33 Correct 230 ms 30572 KB Output is correct
34 Correct 257 ms 32072 KB Output is correct
35 Correct 259 ms 32688 KB Output is correct
36 Correct 164 ms 26804 KB Output is correct
37 Correct 290 ms 34004 KB Output is correct
38 Correct 310 ms 33984 KB Output is correct
39 Correct 284 ms 33764 KB Output is correct
40 Correct 204 ms 30012 KB Output is correct
41 Correct 194 ms 30916 KB Output is correct
42 Correct 150 ms 25884 KB Output is correct
43 Correct 320 ms 38680 KB Output is correct
44 Correct 328 ms 39000 KB Output is correct
45 Correct 309 ms 38540 KB Output is correct
46 Correct 277 ms 38644 KB Output is correct
47 Correct 273 ms 38100 KB Output is correct
48 Correct 169 ms 26744 KB Output is correct
49 Correct 278 ms 38684 KB Output is correct
50 Correct 292 ms 39396 KB Output is correct
51 Correct 282 ms 38628 KB Output is correct
52 Correct 267 ms 38620 KB Output is correct
53 Correct 189 ms 31220 KB Output is correct