Submission #117207

#	Time	Username	Problem	Language	Result	Execution time	Memory
117207		JohnTitor	Job Scheduling (CEOI12_jobs)	C++11	100 / 100	119 ms	16632 KiB

jobs

#include <bits/stdc++.h>
using namespace std;
#define FOR(i, j, k) for(int i=(j); i<=(k); i++)
#define FFOR(i, j, k) for(int i=(j); i<(k); i++)
#define DFOR(i, j, k) for(int i=(j); i>=(k); i--)
#define bug(x) cerr<<#x<<" = "<<(x)<<'\n'
#define pb push_back
#define mp make_pair
#define bit(s, i) (((s)>>(i))&1LL)
#define mask(i) ((1LL<<(i)))
#define builtin_popcount __builtin_popcountll
#define __builtin_popcount __builtin_popcountll
using ll=long long; using ld=long double;
mt19937_64 rng(chrono::high_resolution_clock::now().time_since_epoch().count()); const ld pi=acos(0)*2;
template <typename T> inline void read(T &x){char c; bool nega=0; while((!isdigit(c=getchar()))&&(c!='-')); if(c=='-'){nega=1; c=getchar();} x=c-48; while(isdigit(c=getchar())) x=x*10+c-48; if(nega) x=-x;}
template <typename T> inline void writep(T x){if(x>9) writep(x/10); putchar(x%10+48);}
template <typename T> inline void write(T x){if(x<0){ putchar('-'); x=-x;} writep(x);}
template <typename T> inline void writeln(T x){write(x); putchar('\n');}
#define taskname "Jobs"
int n;
int d;
int m;
vector <int> f[100001];
deque <int> q;
bool test(int mx){
    q.clear();
    FOR(i, 1, n){
        q.pb(f[i].size());
        int w=mx;
        while(w&&(!q.empty())){
            int d=min(q.front(), w);
            q.front()-=d;
            w-=d;
            while((!q.empty())&&(q.front()==0)) q.pop_front();
        }
        if(q.size()>d) return 0;
    }
    return 1;
}
void output(int mx){
    q.clear();
    FOR(i, 1, n){
        for(int x: f[i]) q.pb(x);
        int w=mx;
        while(w&&(!q.empty())){
            write(q.front());
            putchar(' ');
            q.pop_front();
            w--;
        }
        puts("0");
    }
}
int main(){
    #ifdef Aria
        if(fopen(taskname".in", "r"))
            freopen(taskname".in", "r", stdin);
    #endif // Aria
    read(n);
    read(d);
    read(m);
    FOR(i, 1, m){
        int x;
        read(x);
        f[x].pb(i);
    }
    int low=1, high=m, mid, res;
    while(low<=high){
        mid=(low+high)/2;
        if(test(mid)){
            res=mid;
            high=mid-1;
        }
        else low=mid+1;
    }
    writeln(res);
    output(res);
}

Compilation message (stderr)

jobs.cpp: In function 'bool test(int)':
jobs.cpp:36:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         if(q.size()>d) return 0;
            ~~~~~~~~^~
jobs.cpp: In function 'int main()':
jobs.cpp:17:69: warning: 'res' may be used uninitialized in this function [-Wmaybe-uninitialized]
 template <typename T> inline void write(T x){if(x<0){ putchar('-'); x=-x;} writep(x);}
                                                                     ^
jobs.cpp:67:29: note: 'res' was declared here
     int low=1, high=m, mid, res;
                             ^~~

• Subtask 1: 100 / 100