oj.uz

Submission #1011687

# Submission time Handle Problem Language Result Execution time Memory
1011687 2024-07-01T05:35:39 Z pcc Sjeckanje (COCI21_sjeckanje) C++17
55 / 110
 23 ms 636 KB 
#include <bits/stdc++.h>
using namespace std;


#define ll long long
#define pll pair<ll,ll>
#define fs first
#define sc second
#define pii pair<int,int>

const int mxn = 3030;
const ll inf = 1e18;
ll arr[mxn];
ll dp[mxn];
int N,Q;

ll getans(){
	pll mx = pll(-inf,-inf);
	dp[1] = 0;
	mx.fs = -arr[1];
	mx.sc = arr[1];
	for(int i = 1;i<=N;i++){
		dp[i] = max(arr[i]+mx.fs,-arr[i]+mx.sc);
		mx.fs = max(mx.fs,dp[i]-arr[i+1]);
		mx.sc = max(mx.sc,dp[i]+arr[i+1]);
	}
	return dp[N];
}

int main(){
	ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
	cin>>N>>Q;
	for(int i = 1;i<=N;i++)cin>>arr[i];
	while(Q--){
		int l,r,v;
		cin>>l>>r>>v;
		for(int i = l;i<=r;i++)arr[i] += v;
		cout<<getans()<<'\n';
	}
	return 0;
}

Subtask #1
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct

Subtask #2
40.0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 21 ms 348 KB Output is correct
8 Correct 21 ms 344 KB Output is correct
9 Correct 23 ms 636 KB Output is correct
10 Correct 23 ms 348 KB Output is correct
11 Correct 21 ms 348 KB Output is correct
12 Correct 22 ms 512 KB Output is correct

Subtask #3
0 / 55.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 21 ms 348 KB Output is correct
8 Correct 21 ms 344 KB Output is correct
9 Correct 23 ms 636 KB Output is correct
10 Correct 23 ms 348 KB Output is correct
11 Correct 21 ms 348 KB Output is correct
12 Correct 22 ms 512 KB Output is correct
13 Runtime error 1 ms 604 KB Execution killed with signal 11
14 Halted 0 ms 0 KB -