oj.uz

Submission #527998

# Submission time Handle Problem Language Result Execution time Memory
527998 2022-02-19T01:32:39 Z amukkalir Self Study (JOI22_ho_t2) C++17
0 / 100
 462 ms 4992 KB 
#include <bits/stdc++.h> 
using namespace std; 
typedef long long ll; 

#define prn printf
#define scn scanf

ll n, m; 
const int nax = 3e5; 
ll a[nax+5], b[nax+5]; 

ll updiv(ll a, ll b) {
    ll ret = a/b; 
    if(b*ret!=a) ret++; 
    return ret; 
}

bool ok (ll x) {
    ll jum = 0; 
    for(int i=0; i<n; i++) {
        ll rem = x; 
        ll cur = 0; 
        if(a[i] > b[i]) {
            cur += min(m, updiv(x, a[i])); 
            rem -= cur*a[i]; 
        }
        if(rem > 0) {
            cur += updiv(rem, b[i]); 
        }
//cerr << i << " " << cur << endl; 
        jum += cur; 
    }
    return jum <= n*m; 
}

signed main () {
    scn("%lld %lld", &n, &m); 
    for(int i=0; i<n; i++) scn("%lld", &a[i]);
    for(int i=0; i<n; i++) scn("%lld", &b[i]);

    ll ans = 0; 
    ll lo = 1, hi = 1e18; 
    while(lo <= hi) {
        ll mid = (lo+hi)>>1; 
        if(ok(mid)) {
            ans = mid; 
            lo = mid+1; 
        } else hi = mid-1; 
    }
    prn("%lld", ans); 
}

/*
binser 
cek (x)
coba self study semua 
coba kalo nambahin dtg bsb erkurang ga harinya 
jumlahin harinya hrs less than or equal n*m

*/

Compilation message

Main.cpp: In function 'int main()':
Main.cpp:37:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   37 |     scn("%lld %lld", &n, &m);
      |        ^
Main.cpp:38:31: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   38 |     for(int i=0; i<n; i++) scn("%lld", &a[i]);
      |                               ^
Main.cpp:39:31: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   39 |     for(int i=0; i<n; i++) scn("%lld", &b[i]);
      |                               ^

Subtask #1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 3 ms 312 KB Output is correct
11 Correct 198 ms 4928 KB Output is correct
12 Correct 201 ms 4944 KB Output is correct
13 Correct 157 ms 4992 KB Output is correct
14 Incorrect 462 ms 4932 KB Output isn't correct
15 Halted 0 ms 0 KB -

Subtask #2
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 83 ms 2596 KB Output is correct
10 Correct 54 ms 1804 KB Output is correct
11 Correct 40 ms 1356 KB Output is correct
12 Correct 33 ms 1228 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 0 ms 204 KB Output is correct
15 Correct 0 ms 204 KB Output is correct
16 Correct 0 ms 204 KB Output is correct
17 Correct 0 ms 204 KB Output is correct
18 Incorrect 5 ms 332 KB Output isn't correct
19 Halted 0 ms 0 KB -

Subtask #3
0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 3 ms 312 KB Output is correct
11 Correct 198 ms 4928 KB Output is correct
12 Correct 201 ms 4944 KB Output is correct
13 Correct 157 ms 4992 KB Output is correct
14 Incorrect 462 ms 4932 KB Output isn't correct
15 Halted 0 ms 0 KB -

Subtask #4
0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 83 ms 2596 KB Output is correct
10 Correct 54 ms 1804 KB Output is correct
11 Correct 40 ms 1356 KB Output is correct
12 Correct 33 ms 1228 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 0 ms 204 KB Output is correct
15 Correct 0 ms 204 KB Output is correct
16 Correct 0 ms 204 KB Output is correct
17 Correct 0 ms 204 KB Output is correct
18 Incorrect 5 ms 332 KB Output isn't correct
19 Halted 0 ms 0 KB -

Subtask #5
0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 3 ms 312 KB Output is correct
11 Correct 198 ms 4928 KB Output is correct
12 Correct 201 ms 4944 KB Output is correct
13 Correct 157 ms 4992 KB Output is correct
14 Incorrect 462 ms 4932 KB Output isn't correct
15 Halted 0 ms 0 KB -