oj.uz

Submission #959089

# Submission time Handle Problem Language Result Execution time Memory
959089 2024-04-07T13:21:57 Z yeediot Popeala (CEOI16_popeala) C++17
100 / 100
 717 ms 50152 KB 
#include<bits/stdc++.h>
using namespace std;
#define int long long
#define F first
#define S second
#define all(x) x.begin(),x.end()
#define pii pair<int,int>
#define pb push_back
#define sz(x) (int)(x.size())
#define chmin(x,y) x=min(x,y)
#define chmax(x,y) x=max(x,y)
#define vi vector<int>
#define vp vector<pii>
#define vvi vector<vi>
#define ykh mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count())
#define __lg(x) 63-__builtin_clzll(x)
#define pow2(x) (1LL<<x)
void __print(int x) {cerr << x;}
void __print(float x) {cerr << x;}
void __print(double x) {cerr << x;}
void __print(long double x) {cerr << x;}
void __print(char x) {cerr << '\'' << x << '\'';}
void __print(const char *x) {cerr << '\"' << x << '\"';}
void __print(const string &x) {cerr << '\"' << x << '\"';}
void __print(bool x) {cerr << (x ? "true" : "false");}

template<typename T, typename V>
void __print(const pair<T, V> &x) {cerr << '{'; __print(x.first); cerr << ','; __print(x.second); cerr << '}';}
template<typename T>
void __print(const T &x) {int f = 0; cerr << '{'; for (auto &i: x) cerr << (f++ ? "," : ""), __print(i); cerr << "}";}
void _print() {cerr << "]\n";}
template <typename T, typename... V>
void _print(T t, V... v) {__print(t); if (sizeof...(v)) cerr << ", "; _print(v...);}
#ifdef local
void setio(){freopen("/Users/iantsai/Library/Mobile Documents/com~apple~CloudDocs/cpp/Empty.md","r",stdin);}
#define debug(x...) cerr << "[" << #x << "] = ["; _print(x)
#else
void setio(){}
#define debug(x...)
#endif
void setIO(string s) {
    freopen((s + ".in").c_str(), "r", stdin);
    freopen((s + ".out").c_str(), "w", stdout);
}
struct line{
    int a,b;
    int operator()(const int x)const{
        return a*x+b;
    }
};
bool check(line l1,line l2,line l3){
    return (l3.b-l2.b)*(l1.a-l2.a)<=(l2.b-l1.b)*(l2.a-l3.a);
}
const int mxt=110005;
const int mxn=55;
const int inf=2e9;
int pre[mxt];
string g[mxn];
int dp[mxt],tdp[mxt];
struct deq{
    int l,r,v[mxt],cnt;
    int calc(int x){
        return dp[x]-pre[x]*cnt;
    }
    void clear(){
        l=1,r=0;
    }
    void pb(int x){
        if(dp[x]==inf){
            return;
        }
        int val=calc(x);
        while(l<=r and calc(v[r])>=val)
            r--;
        v[++r]=x;
    }
    void del(int x){
        if(l<=r and v[l]==x)
            l++;
    }
    int get(int x){
        return l<=r?calc(v[l])+cnt*pre[x]:inf;
    }
}l[mxn];
int last[mxn],num[mxt];
signed main(){
    setio();
    ios::sync_with_stdio(0);
    cin.tie(0);cout.tie(0);
    int n,t,s;
    cin>>n>>t>>s;
    l[0].cnt=0;
    for(int i=1;i<=t;i++){
        cin>>pre[i];
        pre[i]+=pre[i-1];
    }
    for(int i=1;i<=n;i++){
        l[i].cnt=i;
        cin>>g[i];
        g[i]="#"+g[i];
        for(int j=1;j<=t;j++){
            if(g[i][j]=='0'){
                break;
            }
            dp[j]+=pre[j];
        }
    }
    for(int j=1;j<=t;j++){
        debug(dp[j]);
    }
    cout<<dp[t]<<'\n';
    for(int k=2;k<=s;k++){
        for(int i=0;i<=n;i++){
            l[i].clear();
            last[i]=0;
        }
        dp[0]=inf;
        for(int j=1;j<=t;j++){
            num[j]=n;
            l[n].pb(j-1);
            for(int i=1;i<=n;i++){
                if(g[i][j]=='0'){
                    for(int z=last[i]+1;z<=j;z++){
                        l[num[z]].del(z-1);
                        l[--num[z]].pb(z-1);
                    }
                    last[i]=j;
                }
            }
            tdp[j]=inf;
            for(int i=0;i<=n;i++){
                chmin(tdp[j],l[i].get(j));
            }
        }
        for(int j=1;j<=t;j++){
            dp[j]=tdp[j];
            debug(dp[j]);
        }
        cout<<dp[t]<<'\n';
    }

}
 /*
 input:
 
 */

Compilation message

popeala.cpp: In function 'void setIO(std::string)':
popeala.cpp:42:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   42 |     freopen((s + ".in").c_str(), "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
popeala.cpp:43:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   43 |     freopen((s + ".out").c_str(), "w", stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 6492 KB Output is correct
2 Correct 9 ms 35164 KB Output is correct

Subtask #2
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 25 ms 47732 KB Output is correct
2 Correct 18 ms 45676 KB Output is correct
3 Correct 19 ms 47708 KB Output is correct

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 72 ms 45660 KB Output is correct
2 Correct 108 ms 48220 KB Output is correct
3 Correct 139 ms 48132 KB Output is correct

Subtask #4
74.0 / 74.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 6492 KB Output is correct
2 Correct 9 ms 35164 KB Output is correct
3 Correct 25 ms 47732 KB Output is correct
4 Correct 18 ms 45676 KB Output is correct
5 Correct 19 ms 47708 KB Output is correct
6 Correct 72 ms 45660 KB Output is correct
7 Correct 108 ms 48220 KB Output is correct
8 Correct 139 ms 48132 KB Output is correct
9 Correct 200 ms 48472 KB Output is correct
10 Correct 307 ms 48476 KB Output is correct
11 Correct 562 ms 47992 KB Output is correct
12 Correct 586 ms 50136 KB Output is correct
13 Correct 678 ms 49956 KB Output is correct
14 Correct 717 ms 50152 KB Output is correct
15 Correct 680 ms 50152 KB Output is correct