oj.uz

답안 #210369

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
210369 2020-03-17T08:13:22 Z mhy908 Examination (JOI19_examination) C++14
2 / 100
 3000 ms 16152 KB 
#include <bits/stdc++.h>
#define pb push_back
#define mp make_pair
#define F first
#define S second
#define all(x) x.begin(), x.end()
#define sortvec(x) sort(all(x))
#define compress(x) x.erase(unique(all(x)), x.end())
using namespace std;
typedef long long LL;
typedef pair<int, int> pii;
typedef pair<LL, LL> pll;
typedef pair<int, LL> pil;
typedef pair<LL, int> pli;
const LL llinf=1987654321987654321;
const int inf=2000000000;
struct FENWICK{
    int tree[200010];
    int sum(int i){
        LL ans=0;
        while(i){
            ans+=tree[i];
            i-=(i&-i);
        }
        return ans;
    }
    void update(int i, int num){
        while(i<=200000){
            tree[i]+=num;
            i+=(i&-i);
        }
    }
    void cl(){memset(tree, 0, sizeof tree);}
}fen;
pair<pli, pll> query[200010];
vector<LL> idx, idy;
int ans[200010], n, q;
bool comp(pair<pli, pll> a, pair<pli, pll> b){
    if(a.F.F!=b.F.F)return a.F.F>b.F.F;
    return a.F.S<b.F.S;
}
bool comp2(pll a, pll b){
    if(a.F!=b.F)return a.F>b.F;

}
vector<pll> upd;
vector<pair<pll, int> > que;
void DNC(int l, int r){
    if(l==r)return;
    int mid=(l+r)/2;
    DNC(l, mid); DNC(mid+1, r);
    upd.clear(); que.clear(); fen.cl();
    for(int i=l; i<=mid; i++){
        if(!query[i].F.S)upd.pb(query[i].S);
    }
    for(int i=mid+1; i<=r; i++){
        if(query[i].F.S)que.pb(mp(query[i].S, query[i].F.S));
    }
    sort(all(upd), greater<pll>());
    sort(all(que), greater<pair<pll, int> >());
    int pv=0;
    for(auto i:que){
        for(; pv<upd.size(); pv++){
            if(upd[pv].F<i.F.F)break;
            fen.update((int)upd[pv].S, 1);
        }
        ans[i.S]+=fen.sum(200000)-fen.sum(i.F.S-1);
    }
}
int main(){
    scanf("%d %d", &n, &q);
    for(int i=1; i<=n; i++){
        scanf("%lld %lld", &query[i].F.F, &query[i].S.F);
        query[i].S.S=query[i].F.F+query[i].S.F;
        idx.pb(query[i].S.F);
        idy.pb(query[i].S.S);
    }
    for(int i=n+1; i<=n+q; i++){
        scanf("%lld %lld %lld", &query[i].F.F, &query[i].S.F, &query[i].S.S);
        query[i].F.S=i-n;
        idx.pb(query[i].S.F);
        idy.pb(query[i].S.S);
    }
    sort(query+1, query+n+q+1, comp);
    sortvec(idx); sortvec(idy);
    compress(idx); compress(idy);
    vector<int> vc;
    for(int i=1; i<=n+q; i++){
        query[i].S.F=lower_bound(all(idx), query[i].S.F)-idx.begin()+1;
        query[i].S.S=lower_bound(all(idy), query[i].S.S)-idy.begin()+1;
        vc.pb(i);
    }
    DNC(1, n+q);
    for(int i=1; i<=q; i++)printf("%d\n", ans[i]);
}

Compilation message

examination.cpp: In function 'void DNC(int, int)':
examination.cpp:63:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for(; pv<upd.size(); pv++){
               ~~^~~~~~~~~~~
examination.cpp: In function 'bool comp2(pll, pll)':
examination.cpp:45:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^
examination.cpp: In function 'int main()':
examination.cpp:71:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d %d", &n, &q);
     ~~~~~^~~~~~~~~~~~~~~~~
examination.cpp:73:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%lld %lld", &query[i].F.F, &query[i].S.F);
         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
examination.cpp:79:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%lld %lld %lld", &query[i].F.F, &query[i].S.F, &query[i].S.S);
         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
2.0 / 2.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 1180 KB Output is correct
2 Correct 6 ms 1144 KB Output is correct
3 Correct 5 ms 1144 KB Output is correct
4 Correct 5 ms 1144 KB Output is correct
5 Correct 5 ms 1144 KB Output is correct
6 Correct 6 ms 1144 KB Output is correct
7 Correct 156 ms 1716 KB Output is correct
8 Correct 160 ms 1716 KB Output is correct
9 Correct 151 ms 1716 KB Output is correct
10 Correct 152 ms 1656 KB Output is correct
11 Correct 153 ms 1656 KB Output is correct
12 Correct 158 ms 1672 KB Output is correct
13 Correct 163 ms 1724 KB Output is correct
14 Correct 150 ms 1664 KB Output is correct
15 Correct 152 ms 1656 KB Output is correct
16 Correct 152 ms 1656 KB Output is correct
17 Correct 155 ms 1656 KB Output is correct
18 Correct 156 ms 1528 KB Output is correct

Subtask #2
0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Execution timed out 3068 ms 16152 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #3
0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Execution timed out 3068 ms 16152 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #4
0 / 57.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 1180 KB Output is correct
2 Correct 6 ms 1144 KB Output is correct
3 Correct 5 ms 1144 KB Output is correct
4 Correct 5 ms 1144 KB Output is correct
5 Correct 5 ms 1144 KB Output is correct
6 Correct 6 ms 1144 KB Output is correct
7 Correct 156 ms 1716 KB Output is correct
8 Correct 160 ms 1716 KB Output is correct
9 Correct 151 ms 1716 KB Output is correct
10 Correct 152 ms 1656 KB Output is correct
11 Correct 153 ms 1656 KB Output is correct
12 Correct 158 ms 1672 KB Output is correct
13 Correct 163 ms 1724 KB Output is correct
14 Correct 150 ms 1664 KB Output is correct
15 Correct 152 ms 1656 KB Output is correct
16 Correct 152 ms 1656 KB Output is correct
17 Correct 155 ms 1656 KB Output is correct
18 Correct 156 ms 1528 KB Output is correct
19 Execution timed out 3068 ms 16152 KB Time limit exceeded
20 Halted 0 ms 0 KB -