Submission #877329

#	Time	Username	Problem	Language	Result	Execution time	Memory
877329		_unknown_2010	Hard route (IZhO17_road)	C++17	0 / 100	0 ms	344 KiB

road

//#ifndef LOCAL
//#pragma GCC optimize ("Ofast")
//#pragma GCC optimize ("unroll-loops")
//#endif

#include <bits/stdc++.h>
using namespace std;
using vecp = vector<pair<int,int>>;
#define vecm(a,n,m) vector<vector<int>>a(n,vector<int>(m,0));
#define int int64_t
#define pb  push_back
#define pii pair<int,int>
#define vi vector<int>
#define vii vector<pii>
#define mpii map<int,int>
#define lb lower_bound
#define ub upper_bound
#define foor(i,a,b) for(int i=a;i<b; i++)
#define foor(i,a) foor(i,0,a)
#define ins insert
#define ss second
#define ff first
#define until(x, a) for (auto x : a)
#define ln(x) int(x.size())
#define all(x) (x).begin(), (x).end()
#define seea(a,n) for(int i=0;i<n;i++){cin>>a[i];}
#define seev(v,n) for(int i=0;i<n;i++){int x; cin>>x; v.push_back(x);}
const int mod = 1E9+7;
void solution(){
    int n,m;
    cin >> n >> m;
    vector<vector<char>> vec(n,vector<char>(m));
    for(int i=0; i<n; i++){
        for(int j=0; j<m; j++){
            cin >> vec[i][j];
        }
    }
    int a=0,b=0,cnt=0,mn=INT_MAX;
    for(int i=0; i<n; i++){
        for(int j=0; j<m; j++){
            if(vec[i][j]=='1')cnt++;
            else {
                if(cnt>0)mn=min(mn,cnt);
                cnt=0;
            }
        }
        if(cnt>0){
            mn=min(mn,cnt);
            cnt=0;
        }
    }
    a=mn;
    mn=INT_MAX;
    cnt=0;
    for(int i=0; i<m; i++){
        for(int j=0; j<n; j++){
            if(vec[j][i]=='1')cnt++;
            else {
                if(cnt>0)mn=min(mn,cnt);
                cnt=0;
            }
        }
        if(cnt>0){
            mn=min(mn,cnt);
            cnt=0;
        }
    }
    b=mn;
    if(a==INT_MAX){
        cout << 0;
    }
    else {
        cout << a*b;
    }
}
int32_t main(){
    clock_t tStart = clock();
    std::ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);
    int q = 1; // cin >> q;
    while(q--) {
        solution();
        cout << '\n';
    }
}
/*

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*/

Compilation message (stderr)

road.cpp:19: warning: "foor" redefined
   19 | #define foor(i,a) foor(i,0,a)
      | 
road.cpp:18: note: this is the location of the previous definition
   18 | #define foor(i,a,b) for(int i=a;i<b; i++)
      | 
road.cpp: In function 'int32_t main()':
road.cpp:77:13: warning: unused variable 'tStart' [-Wunused-variable]
   77 |     clock_t tStart = clock();
      |             ^~~~~~

• Subtask 1: 0 / 19
• Subtask 2: 0 / 33
• Subtask 3: 0 / 48