Submission #1072700

#	Time	Username	Problem	Language	Result	Execution time	Memory
1072700		Cyanberry	Minerals (JOI19_minerals)	C++14	0 / 100	1 ms	344 KiB

minerals

#include <bits/stdc++.h>
using namespace std;
#include "minerals.h"

void Solve(int types) {
    bool side[types * 2];
    int sT[types], sF[types], relT[types], relF[types], match[types * 2];
    for (int i=0; i<types * 2; ++i) {
        side[i] = false;
        match[i] = 0;
    }
    int last = 0, sTc = 0, sFc = 0;
    for (int i=0; i<types * 2; ++i) {
        int curr = Query(i+1);
        if (curr > last) {
            ++last;
            sT[sTc] = i+1;
            ++sTc;
            side[i] = true;
        } else {
            sF[sFc] = i+1;
            ++sFc;
        }
    }
    bool inside[types];
    for (int i =0; i < types; ++i) {
        inside[i] = true;
    }
    for (int i = log2(types) + 1; i >= 0; --i) {
        for (int j = 0; j < types; ++j) {
            if (((sT[j] & (1<<i)) > 0) == inside[j]) {
                last = Query(sT[j]);
                inside[j] = !inside[j];
            }
        }
        for (int j =0; j < types; ++j) {
            int curr = Query(sF[j]);
            if (curr != last) {
                match[sF[j]-1] |= (1<<i);
                last = curr;
            }
        }
    }
    for (int i = 0; i <  types * 2; ++i) {
        if (match[i] > 0) {
            Answer(i, match[i]-1);
        }
    }
}

Compilation message (stderr)

minerals.cpp: In function 'void Solve(int)':
minerals.cpp:6:10: warning: variable 'side' set but not used [-Wunused-but-set-variable]
    6 |     bool side[types * 2];
      |          ^~~~
minerals.cpp:7:31: warning: unused variable 'relT' [-Wunused-variable]
    7 |     int sT[types], sF[types], relT[types], relF[types], match[types * 2];
      |                               ^~~~
minerals.cpp:7:44: warning: unused variable 'relF' [-Wunused-variable]
    7 |     int sT[types], sF[types], relT[types], relF[types], match[types * 2];
      |                                            ^~~~

• Subtask 1: 0 / 6
• Subtask 2: 0 / 25
• Subtask 3: 0 / 9
• Subtask 4: 0 / 30
• Subtask 5: 0 / 5
• Subtask 6: 0 / 5
• Subtask 7: 0 / 5
• Subtask 8: 0 / 5
• Subtask 9: 0 / 10