Submission #424778

#	Time	Username	Problem	Language	Result	Execution time	Memory
424778		aris12345678	Job Scheduling (CEOI12_jobs)	C++14	100 / 100	329 ms	17244 KiB

jobs

#include <bits/stdc++.h>
using namespace std;

const int mxN = 100005;
const int mxM = 1000005;
pair<int, int> day[mxM];

bool check(int x, int m, int d, int n) {
    int j = 0;
    for(int i = 1; i <= n+1; i++) {
        int md = x;
        while(md-- && j < m && day[j].first <= i) {
            if(i > d+day[j].first)
                return false;
            j++;
        }
    }
    return true;
}

int main() {
    int n, d, m;
    scanf("%d %d %d", &n, &d, &m);
    for(int i = 0; i < m; i++) {
        scanf("%d", &day[i].first);
        day[i].second = i+1;
    }
    sort(day, day+m);
    int lb = 1, rb = m, md, ans = -1;
    while(lb <= rb) {
        md = (lb+rb)/2;
        if(check(md, m, d, n)) {
            ans = md;
            rb = md-1;
        } else
            lb = md+1;
    }
    printf("%d\n", ans);
    int j = 0;
    for(int i = 1; i <= n; i++) {
        int x = ans;
        while(x-- && j < m && day[j].first <= i) {
            printf("%d ", day[j].second);
            j++;
        }
        printf("0\n");
    }
    return 0;
}

Compilation message (stderr)

jobs.cpp: In function 'int main()':
jobs.cpp:23:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   23 |     scanf("%d %d %d", &n, &d, &m);
      |     ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
jobs.cpp:25:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   25 |         scanf("%d", &day[i].first);
      |         ~~~~~^~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 100 / 100