Submission #711671

#	Time	Username	Problem	Language	Result	Execution time	Memory
711671		089487	ACM (COCI19_acm)	C++14	50 / 50	3 ms	852 KiB

acm

#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("popcnt")
#include<bits/stdc++.h>
#define int long long
#define quick ios::sync_with_stdio(0);cin.tie(0);
#define rep(x,a,b) for(int x=a;x<=b;x++)
#define repd(x,a,b) for(int x=a;x>=b;x--)
#define mp make_pair
#define eb emplace_back
#define F first
#define S second
#define all(x) x.begin(),x.end()
#define lowbit(x) (x&-x)
#define sz(x) (int)(x.size())
using namespace std;
typedef pair<int,int> pii;
void debug(){
    cerr<<"\n";
}
template<class T,class ...U>
void debug(T a,U ...b){
    cout<<a<<" ",debug(b...);
}
const int N=1000+7;
const int INF=1e18;
vector<string> s[N];
void f(int x,bool fail){
    int l=sz(s[x]);
    rep(i,1,l-1){
        if(s[x][i][0]=='?') s[x][i][0]=fail ? '-' : '+';
    }
}
pii get(int x){
    pii res=mp(0,0);
    rep(i,1,sz(s[x])-1){
        if(s[x][i][0]=='+') {
            res.F++;
            int num=0;
            int l=sz(s[x][i]);
            int pos=0;
            rep(j,1,l-1){
                if(s[x][i][j]=='/') {pos=j+1;break;}
                num=num*10+s[x][i][j]-'0';
            }
            //debug("ok");return res;
            res.S+=num*20*60;
            num=0;
            while(pos<l){
                if(s[x][i][pos]==':'){
                    pos++;break;
                }
                num=num*10+s[x][i][pos++]-'0';
            }
            res.S+=num*60*60;
            num=0;
            while(pos<l){
                if(s[x][i][pos]==':'){
                    pos++;break;
                }
                num=num*10+s[x][i][pos++]-'0';
            }
            res.S+=num*60;
            num=0;
            while(pos<l){
                num=num*10+s[x][i][pos++]-'0';
            }
            res.S+=num;
        }
    }
    return res;
}
bool great(int a,int b){
    pii p1=get(a);
    pii p2=get(b);
    //debug(a,b,"a,b",p1.F,p1.S,",",p2.F,p2.S);
    if(p1.F!=p2.F) return p1.F>p2.F;

    return p1.S<p2.S;
}
signed main(){
    quick

    int n,m;
    cin>>n>>m;
    rep(i,0,n){
        s[i].resize(m+1);
        rep(j,0,m) cin>>s[i][j];
    }
    int st=0;
    rep(i,0,n-1){
        if(s[i][0]==s[n][0]) st=i;
    }
    rep(i,0,n-1){
        if(i==st){
            f(i,true);
        }
        else f(i,false);
    }
    /*rep(i,0,n-1){
        for(string s2:s[i]) cout<<s2<<" ";cout<<"\n";

    }*/
    //debug("ok");return 0;
    int Win=0;
    rep(i,0,n-1){
        if(i==st) continue;
        //debug(i,st,"i,st");
        if(great(i,n)) Win++;
    }
    cout<<Win+1<<"\n";

}

• Subtask 1: 50 / 50