oj.uz

Submission #565309

# Submission time Handle Problem Language Result Execution time Memory
565309 2022-05-20T16:22:23 Z PranjalChandra Job Scheduling (CEOI12_jobs) C++14
100 / 100
 340 ms 20412 KB 
///usr/bin/g++ -O2 $0 -o ${0%.cpp} && echo "----------" && ./${0%.cpp}; exit;
#include <bits/stdc++.h>
using namespace std;
 
typedef long long ll;
typedef pair<int, int> ii; 
 
const int N = 1e5 + 10; 
vector<int> p[N], ans[N];
int n, d, m; 
 
bool check(int x) {
    for(int i = 1; i <= n; i++) ans[i].clear(); 
    for(int i = 1, idx = 1; i <= n; idx = max(idx, ++i)) {
        for(int id : p[i]) {
            if(ans[idx].size() == x) ++idx; 
            if(idx > i + d) return 0;
            ans[idx].push_back(id); 
        }
    } return 1; 
}
 
int main() {
    scanf("%d %d %d", &n, &d, &m); 
    for(int i = 1; i <= m; i++) {
        int x; scanf("%d", &x); 
        p[x].push_back(i);
    }
    int lo = 1, hi = m, idx; 
    while(lo <= hi) {
        int mid = lo + hi >> 1; 
        if(check(mid)) idx = mid, hi = mid - 1; 
        else lo = mid + 1; 
    }
    check(idx);
    printf("%d\n", idx); 
    for(int i = 1; i <= n; i++) {
        for(int id : ans[i]) 
            printf("%d ", id); 
        puts("0"); 
    }
}

Compilation message

jobs.cpp: In function 'bool check(int)':
jobs.cpp:16:32: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   16 |             if(ans[idx].size() == x) ++idx;
      |                ~~~~~~~~~~~~~~~~^~~~
jobs.cpp: In function 'int main()':
jobs.cpp:31:22: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   31 |         int mid = lo + hi >> 1;
      |                   ~~~^~~~
jobs.cpp:24:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   24 |     scanf("%d %d %d", &n, &d, &m);
      |     ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
jobs.cpp:26:21: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   26 |         int x; scanf("%d", &x);
      |                ~~~~~^~~~~~~~~~

Subtask #1
100.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 37 ms 6568 KB Output is correct
2 Correct 34 ms 6568 KB Output is correct
3 Correct 32 ms 6568 KB Output is correct
4 Correct 33 ms 6556 KB Output is correct
5 Correct 33 ms 6632 KB Output is correct
6 Correct 34 ms 6552 KB Output is correct
7 Correct 33 ms 6580 KB Output is correct
8 Correct 35 ms 6552 KB Output is correct
9 Correct 43 ms 6860 KB Output is correct
10 Correct 43 ms 6940 KB Output is correct
11 Correct 35 ms 6584 KB Output is correct
12 Correct 72 ms 8240 KB Output is correct
13 Correct 106 ms 11180 KB Output is correct
14 Correct 159 ms 13092 KB Output is correct
15 Correct 168 ms 14084 KB Output is correct
16 Correct 219 ms 16140 KB Output is correct
17 Correct 274 ms 20412 KB Output is correct
18 Correct 291 ms 19116 KB Output is correct
19 Correct 340 ms 19916 KB Output is correct
20 Correct 277 ms 20168 KB Output is correct