oj.uz

Submission #402136

# Submission time Handle Problem Language Result Execution time Memory
402136 2021-05-11T11:19:28 Z NintsiChkhaidze Sjeckanje (COCI21_sjeckanje) C++14
55 / 110
 2000 ms 10912 KB 
#include <bits/stdc++.h>
#define pb push_back
#define s second
#define f first
#define ll long long
#define int ll
using namespace std;
const int N = 200005;
ll a[N],dp[4][N];
main (){
    ios_base::sync_with_stdio(0),cin.tie(NULL),cout.tie(NULL);
    int n,m;
    cin>>n>>m;
    
    for (int i=1;i<=n;i++)
        cin>>a[i];
        
    while(m--){
        int l,r,k;
        cin>>l>>r>>k;
        
        for (int i=l;i<=r;i++) 
            a[i] += k;
        
        vector <int> v;
        v.clear();
        for (int i=2;i<=n;i++)
            v.pb(a[i-1] - a[i]);
        
        for (int i=0;i<v.size();i++){
            bool q=0;
            if (i && v[i]*v[i-1] < 0) q=1;
            if (i) dp[0][i] = max(dp[0][i - 1],dp[1][i-1]);
            if (!q) dp[1][i] = dp[0][i] + abs(v[i]);
            else dp[1][i] = dp[0][i - 1] + abs(v[i]);
        }
        
        cout<<max(dp[0][v.size()-1],dp[1][v.size()-1])<<"\n";
        for (int i=0;i<=n;i++)
            dp[0][i] = dp[1][i] = 0;
    }
}

Compilation message

Main.cpp:10:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   10 | main (){
      | ^~~~
Main.cpp: In function 'int main()':
Main.cpp:30:23: 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]
   30 |         for (int i=0;i<v.size();i++){
      |                      ~^~~~~~~~~

Subtask #1
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 2 ms 332 KB Output is correct

Subtask #2
40.0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 2 ms 332 KB Output is correct
7 Correct 72 ms 468 KB Output is correct
8 Correct 72 ms 720 KB Output is correct
9 Correct 70 ms 468 KB Output is correct
10 Correct 70 ms 472 KB Output is correct
11 Correct 73 ms 460 KB Output is correct
12 Correct 66 ms 476 KB Output is correct

Subtask #3
0 / 55.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 2 ms 332 KB Output is correct
7 Correct 72 ms 468 KB Output is correct
8 Correct 72 ms 720 KB Output is correct
9 Correct 70 ms 468 KB Output is correct
10 Correct 70 ms 472 KB Output is correct
11 Correct 73 ms 460 KB Output is correct
12 Correct 66 ms 476 KB Output is correct
13 Execution timed out 2093 ms 10912 KB Time limit exceeded
14 Halted 0 ms 0 KB -