Submission #59023

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
59023	2018-07-20 08:32:19	gusfring	Bulldozer (JOI17_bulldozer)	C++14	100 / 100	1382 ms	33488 KiB

bulldozer

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#include<bits/stdc++.h>
using namespace std;
 
typedef long long ll;
typedef pair<int, int> pii;
 
ll cross(pii a, pii b) {
    return 1LL * a.first * b.second - 1LL * a.second * b.first;
}
 
int N;
struct Point {
    int x, y, w;
    bool operator <(const Point &i) const {
        return y < i.y || (y == i.y && x < i.x);
    }
};
Point P[2010];
int pnt[2010];
vector<pair<pii, pii> > line;
ll ans;
 
bool cmp(pair<pii, pii> a, pair<pii, pii> b) {
    if(cross(a.first, b.first) != 0) return cross(a.first, b.first) > 0;
    return a.second < b.second;
}
 
struct node {
    int len;
    ll sum, mx, lmx, rmx;
 
 
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Compilation message (stderr)

bulldozer.cpp: In function 'int main()':
bulldozer.cpp:95:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i = 0; i < line.size(); i++) {
                    ~~^~~~~~~~~~~~~
bulldozer.cpp:74:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d", &N);
     ~~~~~^~~~~~~~~~
bulldozer.cpp:77:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d %d %d", &P[i].x, &P[i].y, &P[i].w);
         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 5 / 5
• Subtask 2: 20 / 20
• Subtask 3: 35 / 35
• Subtask 4: 20 / 20
• Subtask 5: 20 / 20