Submission #363176

#	Time	Username	Problem	Language	Result	Execution time	Memory
363176		teewar	Xylophone (JOI18_xylophone)	C++14	Compilation error	0 ms	0 KiB

xylophone

void solve(int n) {
    int l = 1, r = n;
    while(r - l > 1) {
        int m = (l + r) / 2;
        if(query(1, m) == n - 1) {
            r = m;
        }
        else {
            l = m;
        }
    }
    int mxpos = r;
    int a[n + 1];
    for(int i = 1; i <= n; ++i) {
        int val;
        if(i <= mxpos) {
            val = query(i, mxpos);
        }
        else {
            val = query(mxpos, i);
        }
        a[i] = n - val;
    }
    for(int i = 1; i <= n; ++i) {
        cout << answer(i, a[i]);
    }
}

Compilation message (stderr)

xylophone.cpp: In function 'void solve(int)':
xylophone.cpp:5:12: error: 'query' was not declared in this scope
    5 |         if(query(1, m) == n - 1) {
      |            ^~~~~
xylophone.cpp:17:19: error: 'query' was not declared in this scope
   17 |             val = query(i, mxpos);
      |                   ^~~~~
xylophone.cpp:20:19: error: 'query' was not declared in this scope
   20 |             val = query(mxpos, i);
      |                   ^~~~~
xylophone.cpp:25:9: error: 'cout' was not declared in this scope
   25 |         cout << answer(i, a[i]);
      |         ^~~~
xylophone.cpp:25:17: error: 'answer' was not declared in this scope
   25 |         cout << answer(i, a[i]);
      |                 ^~~~~~