Submission #981366

#	Time	Username	Problem	Language	Result	Execution time	Memory
981366		pcc	Land of the Rainbow Gold (APIO17_rainbow)	C++17	12 / 100	1382 ms	12380 KiB

rainbow

#include "rainbow.h"
#include <bits/stdc++.h>
using namespace std;

#define pii pair<int,int>
#define fs first
#define sc second

const int mxn = 2e5+10;

int arr[3][mxn];
int pref[mxn];
int row[3][mxn];
bool block(int a,int b){
	return a==-1&&b==-1;
}

void init(int R, int C, int sr, int sc, int M, char *S) {
	memset(pref,0,sizeof(pref));
	memset(row,0,sizeof(row));
	memset(arr,0,sizeof(arr));
	pii now = pii(sr,sc);
	arr[now.fs][now.sc] = -1;
	for(int i = 0;i<M;i++){
		if(S[i] == 'N')now.fs--;
		else if(S[i] == 'S')now.fs++;
		else if(S[i] == 'E')now.sc++;
		else if(S[i] == 'W')now.sc--;
		arr[now.fs][now.sc] = -1;
	}
	for(int i = 1;i<=R;i++){
		for(int j = 1;j<=C;j++)cerr<<setw(2)<<arr[i][j]<<' ';cerr<<endl;
	}cerr<<endl;

	arr[2][0] = arr[1][0] = -1;
	for(int i = 1;i<=C;i++){
		row[1][i] = row[1][i-1];
		row[2][i] = row[2][i-1];
		pref[i] = pref[i-1];
		if(!arr[1][i]&&arr[1][i-1])row[1][i]++;
		if(!arr[2][i]&&arr[2][i-1])row[2][i]++;
		if(!block(arr[1][i],arr[2][i])&&block(arr[1][i-1],arr[2][i-1]))pref[i]++;
	}
	for(int i =1;i<=C;i++)cerr<<pref[i]<<' ';cerr<<endl;
	return;

}

int colour(int ar, int ac, int br, int bc) {
	if(ar == br){
		int cnt = row[ar][bc]-row[ar][ac];
		if(!arr[ar][ac])cnt++;
		return cnt;
	}
	else{
		int cnt = pref[bc]-pref[ac];
		if(!block(arr[ar][ac],arr[br][ac]))cnt++;
		return cnt;
	}
}

Compilation message (stderr)

rainbow.cpp: In function 'void init(int, int, int, int, int, char*)':
rainbow.cpp:32:3: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
   32 |   for(int j = 1;j<=C;j++)cerr<<setw(2)<<arr[i][j]<<' ';cerr<<endl;
      |   ^~~
rainbow.cpp:32:56: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
   32 |   for(int j = 1;j<=C;j++)cerr<<setw(2)<<arr[i][j]<<' ';cerr<<endl;
      |                                                        ^~~~
rainbow.cpp:44:2: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
   44 |  for(int i =1;i<=C;i++)cerr<<pref[i]<<' ';cerr<<endl;
      |  ^~~
rainbow.cpp:44:43: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
   44 |  for(int i =1;i<=C;i++)cerr<<pref[i]<<' ';cerr<<endl;
      |                                           ^~~~

• Subtask 1: 0 / 11
• Subtask 2: 12 / 12
• Subtask 3: 0 / 24
• Subtask 4: 0 / 27
• Subtask 5: 0 / 26