Submission #201407

#	Time	Username	Problem	Language	Result	Execution time	Memory
201407		karma	Just Long Neckties (JOI20_ho_t1)	C++14	100 / 100	120 ms	6192 KiB

ho_t1

#include <bits/stdc++.h>
#define pb          emplace_back
#define ll          long long
#define fi          first
#define se          second
#define mp          make_pair
//#define int         int64_t

using namespace std;

const int N = int(2e5) + 5;

typedef pair<int, int> pii;
int ans[N], b[N], n, suf[N], cur;
pii a[N];

int32_t main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0), cout.tie(0);
    #define Task        "test"
    if(fopen(Task".inp", "r")) {
        freopen(Task".inp", "r", stdin);
        freopen(Task".out", "w", stdout);
    }
    cin >> n; ++n;
    for(int i = 1; i <= n; ++i) cin >> a[i].fi, a[i].se = i;
    for(int i = 1; i < n; ++i) cin >> b[i];
    sort(a + 1, a + n + 1); sort(b + 1, b + n);
    for(int i = n, j = n - 1; i > 1; --i, --j) {
        suf[i] = max(suf[i + 1], max(a[i].fi - b[j], 0));
    }
    cur = 0;
    for(int i = 1; i <= n; ++i) {
        ans[a[i].se] = max(cur, suf[i + 1]);
        cur = max(cur, max(a[i].fi - b[i], 0));
    }
    for(int i = 1; i <= n; ++i) cout << ans[i] << ' ';
}

Compilation message (stderr)

ho_t1.cpp: In function 'int32_t main()':
ho_t1.cpp:22:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
         freopen(Task".inp", "r", stdin);
         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
ho_t1.cpp:23:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
         freopen(Task".out", "w", stdout);
         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 1 / 1
• Subtask 2: 8 / 8
• Subtask 3: 91 / 91