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ID	题目	提交者	结果	用时	内存	语言	文件大小	提交时间	测评时间
#170883	#5517. Adjacent Product Sum	ucup-team963^#	WA	21ms	4712kb	C++14	1.6kb	2023-09-09 16:09:37	2023-09-09 16:09:38

Judging History

你现在查看的是最新测评结果

[2023-09-09 16:09:38]
评测

测评结果：WA
用时：21ms
内存：4712kb

查看

[2023-09-09 16:09:37]
提交

answer

#include <bits/stdc++.h>
#define rep(i,a,b) for(int i=(a);i<=(b);++i)

using namespace std;

signed main() {

    if(fopen("yl.in", "r")) {
        freopen("yl.in", "r", stdin);
        freopen("yl.out", "w", stdout);
    }

    ios::sync_with_stdio(false);
    cin.tie(NULL);
    int T;
    cin >> T;
    while(T --) {
        int n;
        cin >> n;
        vector<int> vec(n);
        rep(i,0,n - 1) cin >> vec[i];
        sort(vec.begin(), vec.end());
        deque<int> d1, d2;
        int side = 1;
        long long ans = 0;
        for(auto it = vec.begin(); it != vec.end() && *it <= 0; ++ it) {
            if(side) {
                if(d1.size()) ans += 1ll * d1.front() * (*it);
                d1.push_front(*it);
            } else {
                if(d1.size()) ans += 1ll * d1.back() * (*it);
                d1.push_back(*it);
            }
            side ^= 1;
        }
        side = 1;
        for(auto it = vec.rbegin(); it != vec.rend() && *it > 0; ++ it) {
            if(side) {
                if(d2.size()) ans += 1ll * d2.front() * (*it);
                d2.push_front(*it);
            } else {
                if(d2.size()) ans += 1ll * d2.back() * (*it);
                d2.push_back(*it);
            }
            side ^= 1;
        }

        if(d1.size() == 0) ans += d2.front() * d2.back();
        else if(d2.size() == 0) ans += d1.front() * d1.back();
        else {
            ans += min(1ll * d1.front() * d2.front() + 1ll * d1.back() * d2.back(), 1ll * d1.back() * d2.front() + 1ll * d1.front() * d2.back());
        }
        cout << ans << endl;
    }
    return 0;
}

源文件, 语言: C++14

详细

Test #1:

score: 100

Accepted

time: 1ms

memory: 3624kb

input:

4
3
1 2 3
6
1 1 1 1 0 0
5
100000 100000 100000 100000 -100000
5
1 2 3 4 5

output:

11
3
10000000000
48

result:

ok 4 number(s): "11 3 10000000000 48"

Test #2:

score: -100

Wrong Answer

time: 21ms

memory: 4712kb

input:

1
200000
11009 633591 -419208 -664908 731171 -774644 -878270 656078 -38057 -220602 -897906 670165 -765931 -612936 -583782 -549624 -644245 137209 -983054 -110583 349193 699723 -412876 -417691 810865 -474314 -200632 570810 -283481 39600 20940 218215 -408751 -507326 -961614 600863 499517 -538207 767155...

output:

66608463123493909

result:

wrong answer 1st numbers differ - expected: '66608463123493911', found: '66608463123493909'