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Submission #851598

# Submission time Handle Problem Language Result Execution time Memory
851598 2023-09-20T08:18:58 Z abcvuitunggio Sails (IOI07_sails) C++17
30 / 100
 1000 ms 2000 KB 
#include <bits/stdc++.h>
#define int long long
using namespace std;
int n,h,k,sum[100002],cnt[100002],res,cur,mx;
int32_t main(){
    ios_base::sync_with_stdio(NULL);cin.tie(nullptr);
    cin >> n;
    cnt[1]=n;
    while (n--){
        cin >> h >> k;
        mx=max(mx,h);
        cnt[h+1]--;
        sum[h-k+1]++;
        sum[h+1]--;
        cur+=k;
    }
    for (int i=1;i<=100001;i++){
        cnt[i]+=cnt[i-1];
        sum[i]+=sum[i-1];
    }
    for (int i=100000;i>=1;i--)
        sum[i]+=sum[i+1];
    for (int i=1;i<=mx;i++){
        if (!cur)
            break;
        int l=0,r=cnt[i],kq=-1;
        while (l<=r){
            int mid=(l+r)>>1,amount=0;
            for (int j=mx;j>=i;j--)
                amount=min(amount+mid,sum[j]);
            if (amount>=cur){
                kq=mid;
                r=mid-1;
            }
            else
                l=mid+1;
        }
        cur-=kq;
        res+=1LL*kq*(kq-1)/2;
    }
    cout << res;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1880 KB Output is correct
2 Correct 1 ms 1884 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1880 KB Output is correct
2 Correct 1 ms 1880 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1880 KB Output is correct
2 Correct 1 ms 1880 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 1880 KB Output is correct
2 Correct 3 ms 1880 KB Output is correct

Subtask #5
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 107 ms 2000 KB Output is correct
2 Execution timed out 1036 ms 1880 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #6
0 / 10.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1012 ms 1880 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #7
0 / 10.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1034 ms 1880 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #8
0 / 10.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1028 ms 1880 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #9
0 / 10.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1039 ms 1880 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #10
0 / 10.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1038 ms 1880 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #11
0 / 10.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1042 ms 1880 KB Time limit exceeded
2 Halted 0 ms 0 KB -