Submission #1068146

#	Time	Username	Problem	Language	Result	Execution time	Memory
1068146		AlphaBruh	Soccer Stadium (IOI23_soccer)	C++17	25 / 100	245 ms	39812 KiB

soccer

#include "soccer.h"
#include<bits/stdc++.h>
using namespace std;
#define P pair<int,int>
int tot=0;
P emprg(vector<int>x){
    P ret;
    int cnt=0,fst=x.size(),lst=-1;
    for(int i=0;i<x.size();i++){
        if(x[i]==0){
            cnt++;
            fst=min(fst,i);
            lst=max(lst,i);
        }
    }
    tot+=cnt;
    if(lst==-1) return{fst,lst};
    if(lst-fst+1 == cnt){
        ret.first=fst;
        ret.second=lst;
        return ret;
    }
    ret.first=-2;
    return ret;
}
int rla(P prf, P nxt){
    if(prf.first == nxt.first && prf.second == nxt.second) return 0;
    if (prf.first <= nxt.first && prf.second >= nxt.second) return -1;
    if(prf.first >= nxt.first && prf.second <= nxt.second) return 1;
    return -2;
}
int biggest_stadium(int N, std::vector<std::vector<int>> F)
{
    tot=0;
    vector<P>allr;
    for(int i=0;i<N;i++){
        P get(emprg(F[i]));
        if(get.first==-2) return 0;
        if(get.second==-1 && allr.empty()) continue;
        allr.push_back(get);
    }
    P prf=allr[0];
    bool inc=1;
    for(int i=1;i<allr.size();i++){
        int x=rla(prf,allr[i]);
        if(x==-1) inc=0;
        else if(x==1 && inc==0) return 0;
        prf=allr[i];
    }
    for(int i=0;i<allr.size();i++){
        for(int j=0;j<i;j++){
            if(rla(allr[i],allr[j])==-2) return 0;
        }
    }
    return tot;
}

Compilation message (stderr)

soccer.cpp: In function 'std::pair<int, int> emprg(std::vector<int>)':
soccer.cpp:9:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    9 |     for(int i=0;i<x.size();i++){
      |                 ~^~~~~~~~~
soccer.cpp: In function 'int biggest_stadium(int, std::vector<std::vector<int> >)':
soccer.cpp:44:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   44 |     for(int i=1;i<allr.size();i++){
      |                 ~^~~~~~~~~~~~
soccer.cpp:50:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   50 |     for(int i=0;i<allr.size();i++){
      |                 ~^~~~~~~~~~~~

• Subtask 0: 0 / 0
• Subtask 1: 1.5 / 6
• Subtask 2: 2 / 8
• Subtask 3: 5.5 / 22
• Subtask 4: 4.5 / 18
• Subtask 5: 4 / 16
• Subtask 6: 7.5 / 30