oj.uz

Submission #28145

# Submission time Handle Problem Language Result Execution time Memory
28145 2017-07-15T13:09:59 Z asd(#1217, kjp4155) The City and The Bitcoin (FXCUP2_city) C++14
1 / 1
 16 ms 2800 KB 
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <iostream>
#include <memory.h>
#include <math.h>
#include <assert.h>
#include <queue>
#include <map>
#include <set>
#include <string>
#include <algorithm>
#include <functional>
#include <vector>
#include <stack>
#include <deque>
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
typedef pair<int, int> Pi;
typedef pair<ll,ll> Pll;

#define Fi first
#define Se second
#define pb(x) push_back(x)
#define sz(x) (int)x.size()
#define rep(i, n) for(int i=0;i<n;i++)
#define repp(i, n) for(int i=1;i<=n;i++)
#define all(x) x.begin(), x.end()

#define geti1(X) scanf("%d",&X)
#define geti2(X,Y) scanf("%d%d",&X,&Y)
#define geti3(X,Y,Z) scanf("%d%d%d",&X,&Y,&Z)
#define geti4(X,Y,Z,W) scanf("%d%d%d%d",&X,&Y,&Z,&W)

#define GET_MACRO(_1,_2,_3,_4,NAME,...) NAME
#define geti(...) GET_MACRO(__VA_ARGS__, geti4, geti3, geti2, geti1) (__VA_ARGS__)

#define INF 987654321
#define IINF 987654321987654321
#define MAXV 3000500


#define MOD 1234567

int N,M,T,K;
int p[400][400];
bool vis[400][400];
bool inbound(int y, int x){
	if( x < 1 || y < 1 || x > M || y > N ) return false;
	return true;
}
int xx[2] = {1,0}, yy[2] = {0,1};
int main(){
	geti(M,N);
	repp(i,N){
		repp(j,M) geti(p[i][j]);
	}

	queue<Pi> q; q.push({1,1});
	vis[1][1] = true;
	while(!q.empty()){
		int x = q.front().Se, y = q.front().Fi;
		q.pop();
		rep(k,2){
			int nx = x + xx[k]; int ny = y + yy[k];
			if( !inbound(ny,nx) ) continue;
			if( vis[ny][nx] ) continue;
			if( p[ny][nx] == 0 ) continue;
			q.push({ny,nx}); vis[ny][nx] = true; 
		}
	}

	if( vis[N][M] ) printf("Yes\n");
	else printf("No");
}

Compilation message

city.cpp: In function 'int main()':
city.cpp:55:11: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  geti(M,N);
           ^
city.cpp:57:26: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   repp(j,M) geti(p[i][j]);
                          ^

Subtask #1
1.0 / 1.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 2800 KB Output is correct
2 Correct 0 ms 2800 KB Output is correct
3 Correct 0 ms 2800 KB Output is correct
4 Correct 0 ms 2800 KB Output is correct
5 Correct 0 ms 2800 KB Output is correct
6 Correct 0 ms 2800 KB Output is correct
7 Correct 0 ms 2800 KB Output is correct
8 Correct 0 ms 2800 KB Output is correct
9 Correct 0 ms 2800 KB Output is correct
10 Correct 0 ms 2800 KB Output is correct
11 Correct 3 ms 2800 KB Output is correct
12 Correct 3 ms 2800 KB Output is correct
13 Correct 6 ms 2800 KB Output is correct
14 Correct 3 ms 2800 KB Output is correct
15 Correct 13 ms 2800 KB Output is correct
16 Correct 9 ms 2800 KB Output is correct
17 Correct 13 ms 2800 KB Output is correct
18 Correct 16 ms 2800 KB Output is correct
19 Correct 13 ms 2800 KB Output is correct
20 Correct 9 ms 2800 KB Output is correct