Submission #123816

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
123816	2019-07-02 07:23:54	FutymyClone	Building Bridges (CEOI17_building)	C++14	0 / 100	40 ms	3704 KiB

building

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#include <bits/stdc++.h>
using namespace std;
const int N = 1e5 + 5;
const long long inf = 1LL << 62;
int n, h[N], w[N];
long long dp[N], f[N];
int state (int a, int b) {
    return a > b ? 1 : (a < b ? -1 : 0);
}
struct ConvexHullTrick {
    struct Line {
        long long a, b; // y = ax + b
        mutable function <const Line*()> succ;
        Line (long long a, long long b): a(a), b(b) {};
        bool operator < (const Line &rhs) const {
            if (rhs.b != inf) return a < rhs.a;
            const Line* s = succ();
            if (!s) return false;
            int x = rhs.a;
            return b - s -> b < (s -> a - a) * x;
        }
    };
    multiset <Line> s;
    bool bad (multiset <Line> ::iterator x) {
 
 
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Compilation message (stderr)

building.cpp: In function 'int main()':
building.cpp:74:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d", &n);
     ~~~~~^~~~~~~~~~
building.cpp:75:39: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     for (int i = 1; i <= n; i++) scanf("%d", &h[i]);
                                  ~~~~~^~~~~~~~~~~~~
building.cpp:76:39: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     for (int i = 1; i <= n; i++) scanf("%d", &w[i]);
                                  ~~~~~^~~~~~~~~~~~~

• Subtask 1: 0 / 30
• Subtask 2: 0 / 30
• Subtask 3: 0 / 40