Submission #522748

# Submission time Handle Problem Language Result Execution time Memory
522748 2022-02-05T16:01:20 Z CPSC Examination (JOI19_examination) C++14
0 / 100
3000 ms 327340 KB
# include <bits/stdc++.h>
#define f first
#define s second
#define pb push_back
#define int long long
#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;
map <int, int> tree[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) {
    for (int i = idx; i <= mx; i+=i&(-i)) {
        updatefenw(i,val,1);
    }
}
int getans(int node, int le, int ri, int start, int end, int val1) {
    int pas = 0;
    for (int i = end; i > 0; i -= i&(-i)){
        pas += getfenw(i,val1,mx1);
    }
    for (int i = start - 1; i > 0; i-=i&(-i)) {
        pas -= getfenw(i,val1,mx1);
    }
    return pas;
}
void add(int idx) {
    id = v[idx].s;
    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;
    }
    
    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]];
    }
    cur = 0;
  for (int i = 0; i < v.size(); i++) add(i);
    for(int i = 1; i <= q; i++) {
        if (x[i] == ss || y[i] == ss) {
            pas[i] = 0; continue;
        }
        pas[i] = getans(1,1,mx,x[i],mx,y[i]);
    }
    for (int i = 1; i <= q; i++) cout<<pas[i]<<" ";
}

Compilation message

examination.cpp: In function 'int main()':
examination.cpp:67:23: 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]
   67 |     for (int i = 1; i < tocomp.size(); i++) {
      |                     ~~^~~~~~~~~~~~~~~
examination.cpp:75:23: 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]
   75 |     for (int i = 1; i < tocomp1.size(); i++) {
      |                     ~~^~~~~~~~~~~~~~~~
examination.cpp:98:21: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   98 |   for (int i = 0; i < v.size(); i++) add(i);
      |                   ~~^~~~~~~~~~
# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 4940 KB Output isn't correct
2 Halted 0 ms 0 KB -
# Verdict Execution time Memory Grader output
1 Execution timed out 3112 ms 327340 KB Time limit exceeded
2 Halted 0 ms 0 KB -
# Verdict Execution time Memory Grader output
1 Execution timed out 3112 ms 327340 KB Time limit exceeded
2 Halted 0 ms 0 KB -
# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 4940 KB Output isn't correct
2 Halted 0 ms 0 KB -