Submission #116658

#	Time	Username	Problem	Language	Result	Execution time	Memory
116658		JohnTitor	Popeala (CEOI16_popeala)	C++11	100 / 100	1652 ms	14932 KiB

popeala

#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 "Popeala"
int n, t, h;
ll s[20001];
ll x[20001];
string p[51];
int nf[20001][51];
ll nc[20001][51];
ll f[20001];
int main(){
    #ifdef Aria
        if(fopen(taskname".in", "r"))
            freopen(taskname".in", "r", stdin);
    #endif // Aria
    read(n);
    read(t);
    read(h);
    FOR(i, 1, t) read(s[i]);
    FOR(i, 1, t) x[i]=x[i-1]+s[i];
    FOR(i, 1, n){
        cin>>p[i];
        p[i]='0'+p[i];
        nf[t][i]=t+1;
        DFOR(j, t-1, 0) if(p[i][j+1]=='0') nf[j][i]=j+1;
        else nf[j][i]=nf[j+1][i];
    }
    FOR(i, 1, t) f[i]=1e18;
    FOR(used, 1, h){
        FOR(j, 0, t) FOR(i, 0, n) nc[j][i]=1e18;
        FFOR(i, 0, t) if(f[i]<1e18){
            int cnt=n;
            vector <int> dt;
            FOR(j, 1, n) dt.pb(nf[i][j]);
            sort(dt.begin(), dt.end());
            reverse(dt.begin(), dt.end());
            int now=i+1;
            while(!dt.empty()){
                while((!dt.empty())&&(dt.back()==now)) dt.pop_back();
                nc[now][dt.size()]=min(nc[now][dt.size()], (ll)(f[i]-x[i]*dt.size()));
                now=dt.back();
            }
        }
        FOR(i, 0, t) f[i]=1e18;
        FOR(i, 1, t){
            FOR(c, 0, n){
                nc[i][c]=min(nc[i][c], nc[i-1][c]);
                f[i]=min(f[i], x[i]*c+nc[i][c]);
            }
        }
        writeln(f[t]);
    }
}

Compilation message (stderr)

popeala.cpp: In function 'int main()':
popeala.cpp:48:17: warning: unused variable 'cnt' [-Wunused-variable]
             int cnt=n;
                 ^~~

• Subtask 1: 8 / 8
• Subtask 2: 9 / 9
• Subtask 3: 9 / 9
• Subtask 4: 74 / 74