Submission #965680

#	Time	Username	Problem	Language	Result	Execution time	Memory
965680		Pring	Xylophone (JOI18_xylophone)	C++17	Compilation error	0 ms	0 KiB

xylophone

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

#ifdef MIKU
string dbmc = "\033[1;38;2;57;197;187m", dbrs = "\033[0m";
#define debug(x...) cout << dbmc << "[" << #x << "]: ", dout(x)
void dout() { cout << dbrs << endl; }
template <typename T, typename ...U>
void dout(T t, U ...u) { cout << t << (sizeof...(u) ? ", " : ""); dout(u...); }
#else
#define debug(...) 39
#endif

#define fs first
#define sc second
#define mp make_pair
#define FOR(i, j, k) for (int i = j, Z = k; i < Z; i++)
using ll = long long;
typedef pair<int, int> pii;

namespace {
    const int MXN = 10005;
    int a[MXN], b[MXN];
    int ans[MXN];
}

void solve(int n) {
    FOR(i, 1, n) a[i] = query(i, i + 1);
    FOR(i, 2, n) b[i] = query(i - 1, i + 1);
    ans[1] = a[1];
    bool p = 1;
    FOR(i, 2, n) {
        if (a[i - 1] + a[i] == b[i]) p *= -1;
        ans[i] = ans[i - 1] + a[i] * p;
    }
    int sml = min_element(ans, ans + n) - ans, big = max_element(ans, ans + n) - ans;
    if (sml > big) {
        swap(sml, big);
        FOR(i, 0, n) ans[i] *= -1;
    }
    int x = -a[sml];
    FOR(i, 0, n) ans[i] += x + 1;
    FOR(i, 0, n) answer(i + 1, ans[i]);
}

#ifdef MIKU
void miku() {

}

int32_t main() {
    cin.tie(0) -> sync_with_stdio(false);
    cin.exceptions(cin.failbit);
    miku();
    return 0;
}
#endif

Compilation message (stderr)

xylophone.cpp: In function 'void solve(int)':
xylophone.cpp:28:25: error: 'query' was not declared in this scope
   28 |     FOR(i, 1, n) a[i] = query(i, i + 1);
      |                         ^~~~~
xylophone.cpp:29:25: error: 'query' was not declared in this scope
   29 |     FOR(i, 2, n) b[i] = query(i - 1, i + 1);
      |                         ^~~~~
xylophone.cpp:33:40: warning: '*' in boolean context, suggest '&&' instead [-Wint-in-bool-context]
   33 |         if (a[i - 1] + a[i] == b[i]) p *= -1;
      |                                      ~~^~~~~
xylophone.cpp:43:18: error: 'answer' was not declared in this scope
   43 |     FOR(i, 0, n) answer(i + 1, ans[i]);
      |                  ^~~~~~