Submission #897093

#	Time	Username	Problem	Language	Result	Execution time	Memory
897093		irmuun	Soccer Stadium (IOI23_soccer)	C++17	1.50 / 100	275 ms	35852 KiB

soccer

#include<bits/stdc++.h>
#include "soccer.h"
 
using namespace std;
 
#define ll long long
#define pb push_back
#define ff first
#define ss second
#define all(s) s.begin(),s.end()
#define rall(s) s.rbegin(),s.rend()

int biggest_stadium(int n,vector<vector<int>>F){
    vector<pair<int,int>>u;
    int total=0;
    bool ok=true;
    for(int i=0;i<n;i++){
        vector<int>v;
        for(int j=0;j<n;j++){
            if(F[i][j]==0){
                total++;
                v.pb(j);
            }
        }
        for(int j=1;j<v.size();j++){
            if(v[j-1]+1!=v[j]){
                ok=false;
            }
        }
        if(v.size()>0){
            u.pb({v[0],v.back()});
        }
    }
    for(int j=0;j<n;j++){
        vector<int>v;
        for(int i=0;i<n;i++){
            if(F[i][j]==0){
                v.pb(i);
            }
        }
        for(int i=1;i<v.size();i++){
            if(v[i-1]+1!=v[i]){
                ok=false;
            }
        }
    }
    for(auto x:u){
        for(auto y:u){
            if(x.ss<y.ff||y.ss<x.ff){
                ok=false;
            }
        }
    }
    if(!ok){
        if(total==1){
            return 2;
        }
        return 1;
    }
    return total;
}

Compilation message (stderr)

soccer.cpp: In function 'int biggest_stadium(int, std::vector<std::vector<int> >)':
soccer.cpp:25:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   25 |         for(int j=1;j<v.size();j++){
      |                     ~^~~~~~~~~
soccer.cpp:41:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   41 |         for(int i=1;i<v.size();i++){
      |                     ~^~~~~~~~~

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