oj.uz

Submission #170563

# Submission time Handle Problem Language Result Execution time Memory
170563 2019-12-25T15:53:35 Z mdn2002 Unija (COCI17_unija) C++14
80 / 100
 1000 ms 31176 KB 
#include<bits/stdc++.h>
using namespace std;
const long long mod=998244353;
multiset<int>ms;
int n,k;
map<int,int>a;
int v[1000006];
vector<int>b;
int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(NULL);
    //freopen("lemonade.in","r",stdin);
    //freopen("lemonade.out","w",stdout);
    scanf("%d",&n);
    for(int i=0;i<n;i++)
    {
        int x,y;
        scanf("%d",&x);
        scanf("%d",&y);
        x/=2;
        y/=2;
        if(a[y+1]==0)
        {
            a[y+1]=++k;
            b.push_back(y+1);
        }
        if(v[a[y+1]]==0)
        {
            v[a[y+1]]=x;
            continue;
        }
        if(v[a[y+1]]<x)v[a[y+1]]=x;
    }
    for(int i=0;i<b.size();i++)ms.insert(v[a[b[i]]]);
    sort(b.begin(),b.end());
    long long ans=0;
    for(int i=0;i<b.size();i++)
    {
        int z=b[i],z1;
        if(i>0)z1=b[i-1];
        else z1=1;
        ans+=*--ms.end()*(z-z1);
        if(v[a[z]]!=0)
        {
            int x=v[a[z]];
            ms.erase(ms.lower_bound(x));
        }
        if(ms.size()==0)break;
    }
    cout<<ans*4;
}

Compilation message

unija.cpp: In function 'int main()':
unija.cpp:36:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i=0;i<b.size();i++)ms.insert(v[a[b[i]]]);
                 ~^~~~~~~~~
unija.cpp:39:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i=0;i<b.size();i++)
                 ~^~~~~~~~~
unija.cpp:16:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d",&n);
     ~~~~~^~~~~~~~~
unija.cpp:20:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d",&x);
         ~~~~~^~~~~~~~~
unija.cpp:21:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d",&y);
         ~~~~~^~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 380 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 376 KB Output is correct
2 Correct 3 ms 376 KB Output is correct
3 Correct 3 ms 376 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 760 KB Output is correct
2 Correct 9 ms 760 KB Output is correct
3 Correct 8 ms 760 KB Output is correct

Subtask #5
0 / 10.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1081 ms 31176 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #6
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct

Subtask #7
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 50 ms 2672 KB Output is correct
2 Correct 49 ms 2680 KB Output is correct
3 Correct 50 ms 2684 KB Output is correct

Subtask #8
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 204 ms 8048 KB Output is correct
2 Correct 221 ms 8044 KB Output is correct
3 Correct 204 ms 8064 KB Output is correct

Subtask #9
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 847 ms 23500 KB Output is correct
2 Correct 841 ms 23392 KB Output is correct
3 Correct 852 ms 23260 KB Output is correct

Subtask #10
0 / 10.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1060 ms 28628 KB Time limit exceeded
2 Halted 0 ms 0 KB -