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Submission #522743

# Submission time Handle Problem Language Result Execution time Memory
522743 2022-02-05T15:52:31 Z CPSC Examination (JOI19_examination) C++14
2 / 100
 295 ms 83820 KB 
# include <bits/stdc++.h>
#define f first
#define s second
#define pb push_back
#define pii pair <int, int> 
using namespace std;
const int N = 1e5 + 5;
int n,q,a[N],b[N],c[N],x[N],y[N],z[N],mx,id,cnt,cur,pas[N];
unordered_map <int, int> shes,shes1;
vector <int> tocomp,tocomp1;
int mx1,cnt1;
multiset <int> ms,ms1;
unordered_map <int, int> tree[4*N];
vector < pii > v,v1;
void updatefenw(int node, int idx, int val) {
    for (int i = idx; i <= mx1; i+=i&(-i)) {
        tree[node][i] += val;
    }
}
int getfenw(int node, int le, int ri) {
    int pas = 0;
    for (int i = ri; i > 0 ; i -= i&(-i)) {
        pas += tree[node][i];
    }
    for (int i = le - 1; i > 0; i-=i&(-i)) {
        pas -= tree[node][i];
    }
    return pas;
}
void update(int node, int le ,int ri, int idx, int val) {
    if (le > idx || ri < idx) return ;
    if (le == ri) {
        updatefenw(node,val,1);
        return ;
    }
    int mid = (le + ri) / 2;
    update(2 * node, le, mid , idx, val);
    update(2*node + 1, mid + 1, ri, idx, val);
    if (le <= idx && ri >= idx) {
         updatefenw(node,val,1);
    }
}
int getans(int node, int le, int ri, int start, int end, int val1) {
    if (le > end || ri < start) return 0;
    if (le >= start && ri <= end) {
        //cout<<le<<" "<<ri<<" "<<val1<<" '"
        return getfenw(node,val1,mx1);
    }
    int mid = (le + ri) / 2;
    return getans(2*node, le, mid,start,end,val1) + getans(2*node + 1, mid + 1, ri, start,end,val1);
}
void add(int idx) {
    id = v[idx].s;
   // cout<<a[id]<<" "<<b[id]<<endl;
    update(1,1,mx,a[id],b[id]);
}
signed main() {
    std::ios_base::sync_with_stdio(false),cin.tie(0),cout.tie(0);
    cin>>n>>q;
    for (int i = 1; i <= n; i++) {
        cin>>a[i]>>b[i];
        tocomp.pb(a[i]);
        tocomp1.pb(b[i]);
        ms.insert(a[i]);
        ms1.insert(b[i]);
        v.pb({a[i] + b[i],i});
    }
    sort(v.begin(),v.end());
    reverse(v.begin(),v.end());
    sort(tocomp.begin(),tocomp.end());
    cnt = 1;
    shes[tocomp[0]] = 1;
    mx = 1;
    for (int i = 1; i < tocomp.size(); i++) {
        if (tocomp[i] != tocomp[i - 1]) cnt++;
        mx = cnt;
        shes[tocomp[i]] = cnt;
    }
    sort(tocomp1.begin(),tocomp1.end());
    cnt1 = 1;
    shes1[tocomp1[0]] = 1;
    for (int i = 1; i < tocomp1.size(); i++) {
        if (tocomp1[i] != tocomp1[i - 1]) cnt1++;
        mx1 = cnt1;
        shes1[tocomp1[i]] = cnt1;
    }
    int ss = 1e9 + 3;
    for (int i = 1; i <= q; i++) {
        cin>>x[i]>>y[i]>>z[i];
        if (ms.lower_bound(x[i]) != ms.end())
        x[i] = *ms.lower_bound(x[i]); else x[i] = ss;
        if (ms1.lower_bound(y[i]) != ms1.end())
        y[i] = *ms1.lower_bound(y[i]); else y[i] = ss;
        v1.pb({z[i],i});
    }
    
    for (int i = 1; i <= n; i++) {
        a[i] = shes[a[i]];
        b[i] = shes1[b[i]];
    }for (int i = 1; i <= q; i++) {
        if (x[i] != ss)
        x[i] = shes[x[i]]; 
        if (y[i] != ss) y[i] = shes1[y[i]];
    }
    
    sort(v1.begin(),v1.end());
    reverse(v1.begin(),v1.end());
    if (n >= 100000) assert(false);
    cur = 0;
    for(int i = 0; i < v1.size(); i++) {
        if (x[v1[i].s] == ss || y[v1[i].s] == ss) {
          //  cout<<v1[i].s<<" "<<x[i]<<" "<<y[i]<<endl;
            pas[v1[i].s] = 0; continue;
        }
        while (cur < v.size() && v[cur].f >= v1[i].f) {
            add(cur);
            cur++;
        }
        pas[v1[i].s] = getans(1,1,mx,x[v1[i].s],mx,y[v1[i].s]);
    }
    for (int i = 1; i <= q; i++) cout<<pas[i]<<" ";
}

Compilation message

examination.cpp: In function 'int main()':
examination.cpp:74:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   74 |     for (int i = 1; i < tocomp.size(); i++) {
      |                     ~~^~~~~~~~~~~~~~~
examination.cpp:82:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   82 |     for (int i = 1; i < tocomp1.size(); i++) {
      |                     ~~^~~~~~~~~~~~~~~~
examination.cpp:110:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  110 |     for(int i = 0; i < v1.size(); i++) {
      |                    ~~^~~~~~~~~~~
examination.cpp:115:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  115 |         while (cur < v.size() && v[cur].f >= v1[i].f) {
      |                ~~~~^~~~~~~~~~

Subtask #1
2.0 / 2.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 22220 KB Output is correct
2 Correct 12 ms 22268 KB Output is correct
3 Correct 13 ms 22220 KB Output is correct
4 Correct 14 ms 22220 KB Output is correct
5 Correct 12 ms 22264 KB Output is correct
6 Correct 12 ms 22204 KB Output is correct
7 Correct 54 ms 31172 KB Output is correct
8 Correct 53 ms 31340 KB Output is correct
9 Correct 52 ms 31220 KB Output is correct
10 Correct 23 ms 24396 KB Output is correct
11 Correct 28 ms 23984 KB Output is correct
12 Correct 20 ms 22732 KB Output is correct
13 Correct 56 ms 31404 KB Output is correct
14 Correct 55 ms 31300 KB Output is correct
15 Correct 57 ms 31300 KB Output is correct
16 Correct 21 ms 22964 KB Output is correct
17 Correct 18 ms 23628 KB Output is correct
18 Correct 15 ms 22728 KB Output is correct

Subtask #2
0 / 20.0

# Verdict Execution time Memory Grader output
1 Runtime error 295 ms 83820 KB Execution killed with signal 6
2 Halted 0 ms 0 KB -

Subtask #3
0 / 21.0

# Verdict Execution time Memory Grader output
1 Runtime error 295 ms 83820 KB Execution killed with signal 6
2 Halted 0 ms 0 KB -

Subtask #4
0 / 57.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 22220 KB Output is correct
2 Correct 12 ms 22268 KB Output is correct
3 Correct 13 ms 22220 KB Output is correct
4 Correct 14 ms 22220 KB Output is correct
5 Correct 12 ms 22264 KB Output is correct
6 Correct 12 ms 22204 KB Output is correct
7 Correct 54 ms 31172 KB Output is correct
8 Correct 53 ms 31340 KB Output is correct
9 Correct 52 ms 31220 KB Output is correct
10 Correct 23 ms 24396 KB Output is correct
11 Correct 28 ms 23984 KB Output is correct
12 Correct 20 ms 22732 KB Output is correct
13 Correct 56 ms 31404 KB Output is correct
14 Correct 55 ms 31300 KB Output is correct
15 Correct 57 ms 31300 KB Output is correct
16 Correct 21 ms 22964 KB Output is correct
17 Correct 18 ms 23628 KB Output is correct
18 Correct 15 ms 22728 KB Output is correct
19 Runtime error 295 ms 83820 KB Execution killed with signal 6
20 Halted 0 ms 0 KB -