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Submission #895969

# Submission time Handle Problem Language Result Execution time Memory
895969 2023-12-31T08:58:29 Z omsincoconut Potatoes and fertilizers (LMIO19_bulves) C++17
0 / 100
 7 ms 2396 KB 
#include <bits/stdc++.h>

using namespace std;

typedef long long int lli;
typedef long double ld;
typedef pair<ld, ld> pld;
typedef pair<lli, lli> pll;
#define mp(x, y) make_pair(x, y)

const lli MAXN = 5e5+5;

lli N;
lli a[MAXN], b[MAXN];

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);

    cin >> N;
    for (lli i = 0; i < N; i++) cin >> a[i] >> b[i];
    lli c[N];
    for (lli i = 0; i < N; i++) c[i] = a[i] - b[i];

    lli ans = 0;
    for (lli j = 1; j < N; j++) {
        for (lli i = 0; i < N-j; i++) {
            if (c[i] > 0 && c[i+j] < 0) {
                lli val = min(c[i], -c[i+j]);
                ans += j*val;
                c[i] -= val;
                c[i+j] += val;
            }
        }
        for (lli i = N-j-1; i >= 0; i--) {
            if (c[i] < 0 && c[i+j] > 0) {
                lli val = min(-c[i], c[i+j]);
                ans += j*val;
                c[i] += val;
                c[i+j] -= val;
            }
        }
    }

    cout << ans;

    return 0;
}

Subtask #1
0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 7 ms 2396 KB Output is correct
3 Incorrect 7 ms 2396 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 7 ms 2396 KB Output is correct
3 Incorrect 7 ms 2396 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #3
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 7 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Incorrect 1 ms 2396 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #4
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 7 ms 2396 KB Output is correct
3 Incorrect 7 ms 2396 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #5
0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 7 ms 2396 KB Output is correct
3 Incorrect 7 ms 2396 KB Output isn't correct
4 Halted 0 ms 0 KB -