제출 #369236

#제출 시각아이디문제언어결과실행 시간메모리
369236chienyu_xiongLost in the cycle (IOI19_cycle)C++17
컴파일 에러
0 ms0 KiB
/* * CM = March * M = April * IM = July * GM = September * IGM = December */ #include <bits/stdc++.h> #define F first #define S second #define pb push_back #define mp make_pair typedef long long int lli; #define pll pair<lli, lli> #define pil pair<int, lli> #define pli pair<lli, int> #define pii pair<int, int> #define pdd pair<double, double> #define vi vector<int> #define vl vector<lli> #define dmx(x, y) x = max(x, y) #define dmn(x, y) x = min(x, y) using namespace std; void setIO(string str, bool dbg) { ios_base::sync_with_stdio(0); cin.tie(nullptr); cout.tie(nullptr); if (!dbg) { freopen((str + ".in").c_str(), "r", stdin); freopen((str + ".out").c_str(), "w", stdout); } } const int MAX = 1e5 + 5; const int LEN = 2e1 + 1; const int LVL = 2e1 + 0; const lli MOD = 1e9 + 7; const lli INF = 9e17; int xyz = 1; // test cases int amount(int src, int dst, int n) { return (dst - src + n) % n; } /* bool move(int dis) { return jump(dis); //tmp += dis; //tmp %= n; //return tmp == 0 || tmp > (n / 2); } */ void escape(int n) { bool val = jump(0); if (!val) { //cout << "debug" << endl; if (!jump((n + 1) / 2)) { jump(n - 1); return; } } int cur = 0; int lo = 0; int hi = n / 2; while (lo < hi) { int mid = (lo + hi + 1) / 2; int cng = amount(cur, mid, n); if (!jump(cng)) hi = mid - 1; else lo = mid; cur = mid; //cout << lo << " " << hi << ": " << cur << endl; } jump(amount(cur, lo, n)); }

컴파일 시 표준 에러 (stderr) 메시지

cycle.cpp: In function 'void escape(int)':
cycle.cpp:65:13: error: 'jump' was not declared in this scope
   65 |  bool val = jump(0);
      |             ^~~~
cycle.cpp: In function 'void setIO(std::string, bool)':
cycle.cpp:40:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
   40 |   freopen((str + ".in").c_str(), "r", stdin);
      |   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
cycle.cpp:41:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
   41 |   freopen((str + ".out").c_str(), "w", stdout);
      |   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~