Submission #224020

#	Time	Username	Problem	Language	Result	Execution time	Memory
224020		cheeheng	Just Long Neckties (JOI20_ho_t1)	C++14	100 / 100	315 ms	14840 KiB

ho_t1

#include <bits/stdc++.h>
using namespace std;

typedef pair<int, int> ii;

ii C[200005];
int B[200005];
int ans[200005];

// 3 4 6 7
// 2 4 6

int main(){
    int N;
    scanf("%d", &N);

    for(int i = 0; i <= N; i ++){
        int x;
        scanf("%d", &x);
        C[i] = ii(x, i);
    }

    sort(C, C+(N+1));

    for(int i = 0; i < N; i ++){
        scanf("%d", &B[i]);
    }
    sort(B, B+N);

    multiset<int> oddities;
    for(int i = 0; i < N; i ++){
        oddities.insert(max(C[i].first-B[i], 0));
    }
    ans[C[N].second] = *(--oddities.end());

    for(int i = N-1; i >= 0; i --){
        oddities.erase(max(C[i].first-B[i], 0));
        oddities.insert(max(C[i+1].first-B[i], 0));
        ans[C[i].second] = *(--oddities.end());
    }

    for(int i = 0; i <= N; i ++){
        printf("%d ", ans[i]);
    }
    return 0;
}

Compilation message (stderr)

ho_t1.cpp: In function 'int main()':
ho_t1.cpp:15:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d", &N);
     ~~~~~^~~~~~~~~~
ho_t1.cpp:19:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d", &x);
         ~~~~~^~~~~~~~~~
ho_t1.cpp:26:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d", &B[i]);
         ~~~~~^~~~~~~~~~~~~

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