Submission #852160

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
852160	2023-09-21 10:42:59	chanhchuong123	Split the sequence (APIO14_sequence)	C++14	100 / 100	393 ms	90120 KiB

sequence

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#include <bits/stdc++.h>
using namespace std;
#define task ""
const long long INF = 1e18 + 0702;
const int MAX = 100010;
int n, k;
int a[MAX];
int pf[MAX];
int trace[MAX][202];
long long dp[2][MAX];
struct Line {
    int m; long long c; int id;
    Line(int _m = 0, long long _c = 0, int _id = 0) {
        m = _m;
        c = _c;
        id = _id;
    }
    long long eval(long long x) {
        return m * x + c;
    }
};
struct ConvexHullTrick {
    vector<Line> lines;
    int pt = 0;
 
 
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Compilation message (stderr)

sequence.cpp: In member function 'std::pair<long long int, int> ConvexHullTrick::get(int)':
sequence.cpp:50:9: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
   50 |         if (lines.size() == 1) return make_pair(lines[0].eval(x), lines[0].id); while (pt + 1 < lines.size() && lines[pt + 1].eval(x) >= lines[pt].eval(x)) ++pt;
      |         ^~
sequence.cpp:50:81: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
   50 |         if (lines.size() == 1) return make_pair(lines[0].eval(x), lines[0].id); while (pt + 1 < lines.size() && lines[pt + 1].eval(x) >= lines[pt].eval(x)) ++pt;
      |                                                                                 ^~~~~
sequence.cpp:50:95: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<Line>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   50 |         if (lines.size() == 1) return make_pair(lines[0].eval(x), lines[0].id); while (pt + 1 < lines.size() && lines[pt + 1].eval(x) >= lines[pt].eval(x)) ++pt;
      |                                                                                        ~~~~~~~^~~~~~~~~~~~~~
sequence.cpp: In function 'int main()':
sequence.cpp:59:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   59 |   freopen(task".inp", "r", stdin);
      |   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
sequence.cpp:60:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   60 |   freopen(task".out", "w", stdout);
      |   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 11 / 11
• Subtask 2: 11 / 11
• Subtask 3: 11 / 11
• Subtask 4: 17 / 17
• Subtask 5: 21 / 21
• Subtask 6: 29 / 29