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Submission #631548

# Submission time Handle Problem Language Result Execution time Memory
631548 2022-08-18T08:24:22 Z dozer Nizin (COCI16_nizin) C++14
100 / 100
 76 ms 8092 KB 
#include <bits/stdc++.h>
using namespace std;
#define fastio() cin.tie(0), ios_base::sync_with_stdio(0)
#define fileio() freopen("input.txt", "r", stdin), freopen("output.txt", "w", stdout)
#define pb push_back
#define pii pair<int, int>
#define st first
#define nd second
#define sp " "
#define endl "\n"
#define N 1000005
#define modulo 1000000007
#define int long long

int arr[N];

int32_t main()
{
	fastio();

	int n;
	cin>>n;
	for (int i = 1; i <= n; i++)
		cin>>arr[i];

	int l = 0, r = n + 1, sl = 0, sr = 0, ans = 0;
	int steps = 0;
	
	while(l < r)
	{
		//cout<<l<<sp<<r<<endl;
		
		while(sl != sr && l < r)
		{
			while(sl < sr && l < r)
			{
				//cout<<l<<sp<<r<<sp<<sl<<sp<<sr<<endl;
				l++;
				sl += arr[l];
				ans++;
			}
			while(sr < sl && l < r)
			{
				//cout<<l<<sp<<r<<sp<<sl<<sp<<sr<<endl;
				r--;
				sr += arr[r];
				ans++;
			}
		}
		
		l++, r--;
		sl = arr[l], sr = arr[r];
	}

	cout<<ans<<endl;
	cerr<<"time taken : "<<(float)clock() / CLOCKS_PER_SEC<<" seconds\n";
}

Compilation message

nizin.cpp: In function 'int32_t main()':
nizin.cpp:27:6: warning: unused variable 'steps' [-Wunused-variable]
   27 |  int steps = 0;
      |      ^~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct

Subtask #5
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 256 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 340 KB Output is correct

Subtask #6
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct

Subtask #7
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 852 KB Output is correct
2 Correct 10 ms 980 KB Output is correct
3 Correct 6 ms 1036 KB Output is correct

Subtask #8
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 18 ms 2992 KB Output is correct
2 Correct 22 ms 3572 KB Output is correct
3 Correct 28 ms 4152 KB Output is correct

Subtask #9
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 47 ms 6144 KB Output is correct
2 Correct 42 ms 6476 KB Output is correct
3 Correct 46 ms 7268 KB Output is correct

Subtask #10
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 63 ms 7872 KB Output is correct
2 Correct 76 ms 8028 KB Output is correct
3 Correct 58 ms 8092 KB Output is correct