Submission #1279552

#TimeUsernameProblemLanguageResultExecution timeMemory
1279552icebearSelf Study (JOI22_ho_t2)C++20
0 / 100
147 ms5128 KiB
// ~~ icebear ~~ #include <bits/stdc++.h> using namespace std; #define int ll typedef long long ll; typedef pair<int, int> ii; typedef pair<int, ii> iii; template<class T> bool minimize(T &a, const T &b) { if (a > b) return a = b, true; return false; } template<class T> bool maximize(T &a, const T &b) { if (a < b) return a = b, true; return false; } #define FOR(i,a,b) for(int i=(a); i<=(b); ++i) #define FORR(i,a,b) for(int i=(a); i>=(b); --i) #define REP(i, n) for(int i=0; i<(n); ++i) #define RED(i, n) for(int i=(n)-1; i>=0; --i) #define MASK(i) (1LL << (i)) #define BIT(S, i) (((S) >> (i)) & 1) #define mp make_pair #define pb push_back #define fi first #define se second #define all(x) x.begin(), x.end() #define task "icebear" /*END OF TEMPLATE. ICEBEAR AND THE CAT WILL WIN VOI26 */ const int MOD = 1e9 + 7; const int inf = 1e9 + 27092008; const ll INF = 1e18 + 27092008; const int N = 3e5 + 5; int n, m, a[N], b[N]; bool check(ll mid) { ll cnt = 0; FOR(i, 1, n) { ll x = min((ll)m, (mid + a[i] - 1) / a[i]); ll left = max(0ll, mid - x * a[i]); ll y = (left + b[i] - 1) / b[i]; cnt += x + y; } return cnt <= 1LL * n * m; } void init(void) { cin >> n >> m; FOR(i, 1, n) cin >> a[i]; FOR(i, 1, n) cin >> b[i], maximize(a[i], b[i]); } void process(void) { ll low = 1, high = 1e18, res = 0; while(low <= high) { ll mid = (low + high) >> 1; if (check(mid)) res = mid, low = mid + 1; else high = mid - 1; } cout << res; } signed main() { ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0); if (fopen(task".inp", "r")) { freopen(task".inp", "r", stdin); freopen(task".out", "w", stdout); } int tc = 1; // cin >> tc; while(tc--) { init(); process(); } return 0; }

Compilation message (stderr)

Main.cpp: In function 'int main()':
Main.cpp:72:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   72 |         freopen(task".inp", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
Main.cpp:73:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   73 |         freopen(task".out", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...