oj.uz

답안 #703210

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
703210 2023-02-26T14:51:05 Z fdnfksd Bigger segments (IZhO19_segments) C++14
0 / 100
 1 ms 336 KB 
#include<bits/stdc++.h>
#define TASKNAME "codeforce"
#define pb push_back
#define pli pair<int,int>
#define fastio ios_base::sync_with_stdio(false); cin.tie(NULL);
using namespace std;
using ll=long long;
const ll maxN=5e5+10;
const ll inf=1e18;
const ll mod=1e9+7;
ll a[maxN],n;
ll get(ll x)
{
    ll sum=0;
    for(int i=1;i<=x;i++)
    {
        sum+=a[i];
    }
    ll cnt=1;
    for(int j=x+1;j<=n;j++)
    {
        ll k=j;
        ll ss=0;
        while(k<=n&&ss<sum)
        {
            ss+=a[k];
            k++;
        }
        j=k-1;
        if(ss>=sum) cnt++;
    }
    return cnt;
}
void solve()
{
    cin >> n;
    for(int i=1;i<=n;i++) cin >> a[i];
    ll low=2,high=n;
    while(low<=high)
    {
        ll mid=low+high>>1;
        if(get(mid)>get(mid-1)) low=mid+1;
        else high=mid-1;
    }
    cout << get(high);
}
int main()
{
    fastio
    //freopen(TASKNAME".INP","r",stdin);
    //freopen(TASKNAME".OUT","w",stdout);
    solve();
}

Compilation message

segments.cpp: In function 'void solve()':
segments.cpp:41:19: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   41 |         ll mid=low+high>>1;
      |                ~~~^~~~~

Subtask #1
0 / 13.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 328 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 336 KB Output is correct
6 Incorrect 0 ms 212 KB Output isn't correct
7 Halted 0 ms 0 KB -

Subtask #2
0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 328 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 336 KB Output is correct
6 Incorrect 0 ms 212 KB Output isn't correct
7 Halted 0 ms 0 KB -

Subtask #3
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 328 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 336 KB Output is correct
6 Incorrect 0 ms 212 KB Output isn't correct
7 Halted 0 ms 0 KB -

Subtask #4
0 / 36.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 328 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 336 KB Output is correct
6 Incorrect 0 ms 212 KB Output isn't correct
7 Halted 0 ms 0 KB -

Subtask #5
0 / 27.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 328 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 336 KB Output is correct
6 Incorrect 0 ms 212 KB Output isn't correct
7 Halted 0 ms 0 KB -