Submission #1163107


Source Code Expand

#include <bits/stdc++.h>
using namespace std;
#define repl(i,a,b) for(int i=(int)(a);i<(int)(b);i++)
#define rep(i,n) repl(i,0,n)
#define mp(a,b) make_pair((a),(b))
#define pb(a) push_back((a))
#define all(x) (x).begin(),(x).end()
#define uniq(x) sort(all(x)),(x).erase(unique(all(x)),end(x))
#define fi first
#define se second
#define dbg(x) cout<<#x" = "<<((x))<<endl
template<class T,class U> ostream& operator<<(ostream& o, const pair<T,U> &p){o<<"("<<p.fi<<","<<p.se<<")";return o;}
template<class T> ostream& operator<<(ostream& o, const vector<T> &v){o<<"[";for(T t:v){o<<t<<",";}o<<"]";return o;}

#define INF 2147483600

string m[8];
int col[8];
int row[8];

// 斜めみて置けるか
bool isOK(int i, int j){
  const int dd[] = {-1,1,1,-1};
  rep(k,4){
    int dx = dd[k], dy=dd[(k+1)%4];
    int d=1;
    while(true){
      int ni = i+d*dx;
      int nj = j+d*dy;
      if(ni<0 || nj<0 || ni>=8 || nj>=8) break;
      if(m[ni][nj]=='Q') return false;
      d++;
    }
  }
  return true;
}

bool solve(){
  rep(i,8){
    if(col[i]==0){
      rep(j,8){
        if(row[j]==0 && m[i][j]=='.' && isOK(i,j)){
          m[i][j]='Q';
          col[i]++;
          row[j]++;
          if(solve()) return true;
          col[i]--;
          row[j]--;
          m[i][j]='.';
        }
      }
      return false;
    }
  }

  rep(i,8) cout<<m[i]<<endl;
  return true;
}

bool presolve(){
  rep(i,8) cin>>m[i];
  fill(col,col+8,0);
  fill(row,row+8,0);
  rep(i,8) rep(j,8) if(m[i][j]=='Q'){
    if(!isOK(i,j)) return false;
    if(col[i]>0 || row[j]>0) return false;
    col[i]++,row[j]++;
  }
  return solve();
}

int main(){
  if(!presolve()) cout<<"No Answer"<<endl;

  return 0;
}

Submission Info

Submission Time
Task C - パズルのお手伝い
User tossy
Language C++14 (GCC 5.4.1)
Score 100
Code Size 1762 Byte
Status AC
Exec Time 1 ms
Memory 256 KB

Judge Result

Set Name All
Score / Max Score 100 / 100
Status
AC × 42
Set Name Test Cases
All 00_sample1.txt, 00_sample2.txt, 01_rnd_00.txt, 01_rnd_01.txt, 01_rnd_02.txt, 01_rnd_03.txt, 01_rnd_04.txt, 01_rnd_05.txt, 01_rnd_06.txt, 01_rnd_07.txt, 01_rnd_08.txt, 01_rnd_09.txt, 01_rnd_10.txt, 01_rnd_11.txt, 01_rnd_12.txt, 01_rnd_13.txt, 01_rnd_14.txt, 01_rnd_15.txt, 01_rnd_16.txt, 01_rnd_17.txt, 01_rnd_18.txt, 01_rnd_19.txt, 01_rnd_20.txt, 01_rnd_21.txt, 01_rnd_22.txt, 01_rnd_23.txt, 01_rnd_24.txt, 01_rnd_25.txt, 01_rnd_26.txt, 01_rnd_27.txt, 01_rnd_28.txt, 01_rnd_29.txt, 01_rnd_30.txt, 01_rnd_31.txt, 01_rnd_32.txt, 01_rnd_33.txt, 01_rnd_34.txt, 01_rnd_35.txt, 01_rnd_36.txt, 01_rnd_37.txt, 01_rnd_38.txt, 01_rnd_39.txt
Case Name Status Exec Time Memory
00_sample1.txt AC 1 ms 256 KB
00_sample2.txt AC 1 ms 256 KB
01_rnd_00.txt AC 1 ms 256 KB
01_rnd_01.txt AC 1 ms 256 KB
01_rnd_02.txt AC 1 ms 256 KB
01_rnd_03.txt AC 1 ms 256 KB
01_rnd_04.txt AC 1 ms 256 KB
01_rnd_05.txt AC 1 ms 256 KB
01_rnd_06.txt AC 1 ms 256 KB
01_rnd_07.txt AC 1 ms 256 KB
01_rnd_08.txt AC 1 ms 256 KB
01_rnd_09.txt AC 1 ms 256 KB
01_rnd_10.txt AC 1 ms 256 KB
01_rnd_11.txt AC 1 ms 256 KB
01_rnd_12.txt AC 1 ms 256 KB
01_rnd_13.txt AC 1 ms 256 KB
01_rnd_14.txt AC 1 ms 256 KB
01_rnd_15.txt AC 1 ms 256 KB
01_rnd_16.txt AC 1 ms 256 KB
01_rnd_17.txt AC 1 ms 256 KB
01_rnd_18.txt AC 1 ms 256 KB
01_rnd_19.txt AC 1 ms 256 KB
01_rnd_20.txt AC 1 ms 256 KB
01_rnd_21.txt AC 1 ms 256 KB
01_rnd_22.txt AC 1 ms 256 KB
01_rnd_23.txt AC 1 ms 256 KB
01_rnd_24.txt AC 1 ms 256 KB
01_rnd_25.txt AC 1 ms 256 KB
01_rnd_26.txt AC 1 ms 256 KB
01_rnd_27.txt AC 1 ms 256 KB
01_rnd_28.txt AC 1 ms 256 KB
01_rnd_29.txt AC 1 ms 256 KB
01_rnd_30.txt AC 1 ms 256 KB
01_rnd_31.txt AC 1 ms 256 KB
01_rnd_32.txt AC 1 ms 256 KB
01_rnd_33.txt AC 1 ms 256 KB
01_rnd_34.txt AC 1 ms 256 KB
01_rnd_35.txt AC 1 ms 256 KB
01_rnd_36.txt AC 1 ms 256 KB
01_rnd_37.txt AC 1 ms 256 KB
01_rnd_38.txt AC 1 ms 256 KB
01_rnd_39.txt AC 1 ms 256 KB