제출 #306519

#제출 시각아이디문제언어결과실행 시간메모리
306519cheetoseRectangles (IOI19_rect)C++17
0 / 100
1 ms384 KiB
#include <bits/stdc++.h> #define mp make_pair #define pb push_back #define X first #define Y second #define y0 y12 #define y1 y22 #define INF 987654321987654321 #define PI 3.141592653589793238462643383279502884 #define fup(i,a,b,c) for(int (i)=(a);(i)<=(b);(i)+=(c)) #define fdn(i,a,b,c) for(int (i)=(a);(i)>=(b);(i)-=(c)) #define MEM0(a) memset((a),0,sizeof(a)); #define MEM_1(a) memset((a),-1,sizeof(a)); #define ALL(a) a.begin(),a.end() #define SYNC ios_base::sync_with_stdio(false);cin.tie(0) using namespace std; typedef long long ll; typedef long double ld; typedef double db; typedef unsigned int uint; typedef unsigned long long ull; typedef pair<int, int> Pi; typedef pair<ll, ll> Pll; typedef pair<ld, ld> Pd; typedef vector<int> Vi; typedef vector<ll> Vll; typedef vector<db> Vd; typedef vector<Pi> VPi; typedef vector<Pll> VPll; typedef vector<Pd> VPd; typedef tuple<int, int, int> iii; typedef tuple<int, int, int, int> iiii; typedef tuple<ll, ll, ll> LLL; typedef vector<iii> Viii; typedef vector<LLL> VLLL; typedef complex<double> base; const int MOD = 998244353; ll POW(ll a, ll b, ll MMM = MOD) { ll ret = 1; for (; b; b >>= 1, a = (a*a) % MMM)if (b & 1)ret = (ret*a) % MMM; return ret; } ll gcd(ll a, ll b) { return b ? gcd(b, a%b) : a; } ll lcm(ll a, ll b) { if (a == 0 || b == 0)return a + b; return a*(b / gcd(a, b)); } int dx[] = { 0,1,0,-1,1,1,-1,-1 }, dy[] = { 1,0,-1,0,1,-1,1,-1 }; int ddx[] = { -1,-2,1,-2,2,-1,2,1 }, ddy[] = { -2,-1,-2,1,-1,2,1,2 }; bool chk[2500][2500]; int n,m,mnx,mxx,mny,mxy; int bfs(int i,int j,vector<Vi> &a){ mnx=i,mxx=i,mny=j,mxy=j; queue<Pi> q; chk[i][j]=1; q.push(mp(i,j)); int cnt=0; while(!q.empty()){ auto [x,y]=q.front(); mnx=min(mnx,x),mxx=max(mxx,x); mny=min(mny,y),mxy=max(mxy,y); q.pop(); cnt++; fup(i,0,3,1){ int nx=x+dx[i],ny=y+dy[i]; if(nx>=0 && nx<n && ny>=0 && ny<m && !chk[nx][ny]){ } } } return cnt; } ll count_rectangles(vector<Vi> a){ n=a.size(),m=a[0].size(); ll res=0; fup(i,0,n-1,1)fup(j,0,m-1,1){ if(a[i][j]==0 && !chk[i][j]){ int c=bfs(i,j,a); int r=(mxx-mnx+1)*(mxy-mny+1); if(c==r && mnx>0 && mxx<n-1 && mny>0 && mxy<m-1)res++; } } return res; }/* int main() { }*/

컴파일 시 표준 에러 (stderr) 메시지

rect.cpp: In function 'int bfs(int, int, std::vector<std::vector<int> >&)':
rect.cpp:10:30: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
   10 | #define fup(i,a,b,c) for(int (i)=(a);(i)<=(b);(i)+=(c))
      |                              ^
rect.cpp:58:3: note: in expansion of macro 'fup'
   58 |   fup(i,0,3,1){
      |   ^~~
rect.cpp: In function 'll count_rectangles(std::vector<std::vector<int> >)':
rect.cpp:10:30: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
   10 | #define fup(i,a,b,c) for(int (i)=(a);(i)<=(b);(i)+=(c))
      |                              ^
rect.cpp:70:2: note: in expansion of macro 'fup'
   70 |  fup(i,0,n-1,1)fup(j,0,m-1,1){
      |  ^~~
rect.cpp:10:30: warning: unnecessary parentheses in declaration of 'j' [-Wparentheses]
   10 | #define fup(i,a,b,c) for(int (i)=(a);(i)<=(b);(i)+=(c))
      |                              ^
rect.cpp:70:16: note: in expansion of macro 'fup'
   70 |  fup(i,0,n-1,1)fup(j,0,m-1,1){
      |                ^~~
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