oj.uz

Submission #617179

# Submission time Handle Problem Language Result Execution time Memory
617179 2022-08-01T09:21:18 Z 조영욱(#8505) Sweeping (JOI20_sweeping) C++17
1 / 100
 18000 ms 22960 KB 
#include <bits/stdc++.h>
using namespace std;

const int sz=524288;
const int INF=1e9+7;
bool flag=false;

struct Seg {
    int seg[sz*2];
    int lazy[sz*2];
    void init() {
        for(int i=1;i<sz*2;i++) {
            seg[i]=-INF;
            lazy[i]=-INF;
        }
    }
    void prop(int node) {
        if (lazy[node]!=-INF) {
            seg[node]=max(seg[node],lazy[node]);
            if (node<sz) {
                lazy[node*2]=max(lazy[node*2],lazy[node]);
                lazy[node*2+1]=max(lazy[node*2+1],lazy[node]);
            }
            lazy[node]=-INF;
        }
    }
    int sum(int l,int r,int node=1,int nodel=0,int noder=sz-1) {
        prop(node);
        if (r<nodel||l>noder) {
            return -INF;
        }
        if (l<=nodel&&noder<=r) {
            return seg[node];
        }
        int mid=(nodel+noder)/2;
        return max(sum(l,r,node*2,nodel,mid),sum(l,r,node*2+1,mid+1,noder));
    }
    void upd(int l,int r,int val,int node=1,int nodel=0,int noder=sz-1) {
        prop(node);
        if (r<nodel||l>noder) {
            return;
        }
        if (l<=nodel&&noder<=r) {
            lazy[node]=max(lazy[node],val);
            prop(node);
            return;
        }
        int mid=(nodel+noder)/2;
        upd(l,r,val,node*2,nodel,mid);
        upd(l,r,val,node*2+1,mid+1,noder);
        seg[node]=max(seg[node*2],seg[node*2+1]);
    }
};

int n,m,q;
Seg seg1; //x��ǥ
Seg seg2; //y��ǥ
typedef pair<int,int> P;
vector<P> vec;

int main(void) {
    scanf("%d %d %d",&n,&m,&q);
    seg1.init();
    seg2.init();
    for(int i=0;i<m;i++) {
        int x,y;
        scanf("%d %d",&x,&y);
        vec.push_back(P(x,y));
    }
    for(int i=0;i<q;i++) {
        int type;
        scanf("%d",&type);
        if (type==1) {
            int p;
            scanf("%d",&p);
            p--;
            printf("%d %d\n",vec[p].first,vec[p].second);
        }
        if (type==2) {
            int l;
            scanf("%d",&l);
            for(int j=0;j<vec.size();j++) {
                if (vec[j].second<=l) {
                    vec[j].first=max(vec[j].first,n-l);
                }
            }
        }
        if (type==3) {
            int l;
            scanf("%d",&l);
            for(int j=0;j<vec.size();j++) {
                if (vec[j].first<=l) {
                    vec[j].second=max(vec[j].second,n-l);
                }
            }
        }
        if (type==4) {
            int a,b;
            scanf("%d %d",&a,&b);
            vec.push_back(P(a,b));
        }
    }
}

Compilation message

sweeping.cpp: In function 'int main()':
sweeping.cpp:82:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   82 |             for(int j=0;j<vec.size();j++) {
      |                         ~^~~~~~~~~~~
sweeping.cpp:91:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   91 |             for(int j=0;j<vec.size();j++) {
      |                         ~^~~~~~~~~~~
sweeping.cpp:62:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   62 |     scanf("%d %d %d",&n,&m,&q);
      |     ~~~~~^~~~~~~~~~~~~~~~~~~~~
sweeping.cpp:67:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   67 |         scanf("%d %d",&x,&y);
      |         ~~~~~^~~~~~~~~~~~~~~
sweeping.cpp:72:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   72 |         scanf("%d",&type);
      |         ~~~~~^~~~~~~~~~~~
sweeping.cpp:75:18: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   75 |             scanf("%d",&p);
      |             ~~~~~^~~~~~~~~
sweeping.cpp:81:18: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   81 |             scanf("%d",&l);
      |             ~~~~~^~~~~~~~~
sweeping.cpp:90:18: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   90 |             scanf("%d",&l);
      |             ~~~~~^~~~~~~~~
sweeping.cpp:99:18: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   99 |             scanf("%d %d",&a,&b);
      |             ~~~~~^~~~~~~~~~~~~~~

Subtask #1
1.0 / 1.0

# Verdict Execution time Memory Grader output
1 Correct 27 ms 16788 KB Output is correct
2 Correct 21 ms 16804 KB Output is correct
3 Correct 17 ms 16768 KB Output is correct
4 Correct 19 ms 16856 KB Output is correct
5 Correct 39 ms 16808 KB Output is correct
6 Correct 15 ms 16724 KB Output is correct

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Execution timed out 18046 ms 21080 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #3
0 / 11.0

# Verdict Execution time Memory Grader output
1 Execution timed out 18102 ms 22960 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #4
0 / 53.0

# Verdict Execution time Memory Grader output
1 Execution timed out 18102 ms 22960 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #5
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 27 ms 16788 KB Output is correct
2 Correct 21 ms 16804 KB Output is correct
3 Correct 17 ms 16768 KB Output is correct
4 Correct 19 ms 16856 KB Output is correct
5 Correct 39 ms 16808 KB Output is correct
6 Correct 15 ms 16724 KB Output is correct
7 Execution timed out 18046 ms 21080 KB Time limit exceeded
8 Halted 0 ms 0 KB -