Submission #466300

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
466300	2021-08-18 13:31:31	Namnamseo	Land of the Rainbow Gold (APIO17_rainbow)	C++17	100 / 100	838 ms	120080 KiB

rainbow

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#include "rainbow.h"
#include <algorithm>
#include <vector>
#include <tuple>
#define x first
#define y second
#define pb push_back
#define all(v) (v).begin(), (v).end()
#define sort_and_unique(v) { sort(all(v)); v.erase(unique(all(v)), v.end()); }
using namespace std;
using pp=pair<int,int>;
using ll=long long;
const int maxm = int(1e5) + 10;
vector<pp> riv, eh, ev, e4;
void River(int sx, int sy, int m, char *s) {
  riv.resize(m+1);
  for (int i=0; i<m; ++i) {
    riv[i] = {sx, sy};
    if (s[i] == 'S') ++sx; else if (s[i] == 'N') --sx;
    else if (s[i] == 'E') ++sy; else --sy;
  }
  riv[m++] = {sx, sy};
  sort_and_unique(riv); m = riv.size();
  eh = riv; ev = riv; eh.resize(2*m); ev.resize(2*m);
  for (int i=0, x, y; i<m; ++i) { tie(x, y) = riv[i];
    eh[m+i] = {x, y-1}; ev[m+i] = {x-1, y};
  }
  sort_and_unique(eh); sort_and_unique(ev);
 
 
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• Subtask 1: 11 / 11
• Subtask 2: 12 / 12
• Subtask 3: 24 / 24
• Subtask 4: 27 / 27
• Subtask 5: 26 / 26