Submission #30581

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
30581	2017-07-25 06:34:09	RayaBurong25_1	Roller Coaster Railroad (IOI16_railroad)	C++14	100 / 100	939 ms	47984 KiB

railroad

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#include "railroad.h"
#include <set>
#include <algorithm>
#define INF 1000000007
std::set<long long> I;
std::vector<long long> Ic;
long long Fen[400005];
int Pa[400005];
int n;
typedef struct node node;
struct node
{
    int u, v;
    long long w;
};
int compareW(node a, node b)
{
    return (a.w < b.w);
}
std::vector<node> E;
void update(int pos, int val)
{
    for (; pos <= Ic.size(); pos += pos&-pos)
        Fen[pos] += val;
}
long long query(int pos)
{
    long long r = 0;
    for (; pos > 0; pos -= pos&-pos)
        r += Fen[pos];
 
 
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Compilation message (stderr)

railroad.cpp: In function 'void update(int, int)':
railroad.cpp:23:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (; pos <= Ic.size(); pos += pos&-pos)
                ^
railroad.cpp: In function 'long long int plan_roller_coaster(std::vector<int>, std::vector<int>)':
railroad.cpp:71:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (i = 1; i < Ic.size(); i++)
                   ^
railroad.cpp:87:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (i = 0; i < E.size(); i++)
                   ^

• Subtask 1: 11 / 11
• Subtask 2: 23 / 23
• Subtask 3: 30 / 30
• Subtask 4: 36 / 36