Submission #338942

#	Time	Username	Problem	Language	Result	Execution time	Memory
338942		jenkinsser	Red-blue table (IZhO19_stones)	C++17	10 / 100	78 ms	1516 KiB

stones

#include<bits/stdc++.h>
#define pb push_back
#define mp make_pair
#define vi vector<int>
#define st first
#define nd second
#define pii pair<int,int>
#define N 200005
#define INF 1000000005
#define fastio() ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
#define all(x) (x).begin(),(x).end()
#define ll long long
#define int ll
using namespace std;

int n,m,ans;
int cnt[N];

void solve(){
    cin >> n >> m;
    char table[n+1][m+1];
    int ans;
    if(n>=m){
        for(int i=1;i<=n;i++){
            for(int j=1;j<=m;j++){
                table[i][j]='+';
            }
        }
        ans=n;
        int cur=1;
        int l=n*(m-1)/(n+2);
        for(int i=1;i<=n;i++){
            for(int j=1;j<=(m-1)/2;j++){
                table[i][cur]='-';
                cnt[cur]++;
                cur++;
                if(cur-1==l) cur=1;
            }
        }
        for(int i=1;i<=l;i++){
            if(cnt[i]>=n/2+1) ans++; cnt[i]=0;
        }
    }
    else{
        for(int i=1;i<=n;i++){
            for(int j=1;j<=m;j++){
                table[i][j]='-';
            }
        }
        ans=m;
        int cur=1;
        int l=m*(n-1)/(m+2);
        for(int i=1;i<=m;i++){
            for(int j=1;j<=(n-1)/2;j++){
                table[cur][i]='+';
                cnt[cur]++;
                cur++;
                if(cur-1==l) cur=1; cnt[i]=0;
            }
        }
        for(int i=1;i<=l;i++){
            if(cnt[i]>=m/2+1)
                ans++;
        }
    }
    cout << ans << endl;
    for(int i=1;i<=n;i++){
        for(int j=1;j<=m;j++){
            cout << table[i][j];
        }
        cout << endl;
    }
}

int32_t main(){
    fastio()
    int t=1;
    cin >> t;
    while(t--)
        solve();
}

Compilation message (stderr)

stones.cpp: In function 'void solve()':
stones.cpp:41:13: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
   41 |             if(cnt[i]>=n/2+1) ans++; cnt[i]=0;
      |             ^~
stones.cpp:41:38: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
   41 |             if(cnt[i]>=n/2+1) ans++; cnt[i]=0;
      |                                      ^~~
stones.cpp:58:17: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
   58 |                 if(cur-1==l) cur=1; cnt[i]=0;
      |                 ^~
stones.cpp:58:37: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
   58 |                 if(cur-1==l) cur=1; cnt[i]=0;
      |                                     ^~~

• Subtask 1: 0 / 17
• Subtask 2: 10 / 10
• Subtask 3: 0 / 16
• Subtask 4: 0 / 11
• Subtask 5: 0 / 15
• Subtask 6: 0 / 31