Submission #1144806

#TimeUsernameProblemLanguageResultExecution timeMemory
1144806sano삶의 질 (IOI10_quality)C++20
Compilation error
0 ms0 KiB
#include<iostream>
#include<vector>
#include<queue>
#include<deque>
#include<string>
#include<fstream>
#include<algorithm>
#include <iomanip>
#include<map>
#include <set>
#include <unordered_map>
#include <stack>
#include <unordered_set>
#include <cmath>
#include <cstdint>
#define shit short int
#define ll long long
#define For(i, n) for(int i = 0; i < (int)n; i++)
#define ffor(i, a, n) for(int i = (int)a; i < (int)n; i++)
#define rfor(i, n) for(int i = (int)n; i >= (int)0; i--)
#define rffor(i, a, n) for(int i = (int)n; i >= (int)a; i--)
#define vec vector
#define ff first
#define ss second
#define pb push_back
#define pii pair<int, int>
#define NEK 2000000000
#define mod 1000000007
#define mod2 1000000009
#define rsz resize 
#define prv1 43
#define prv2 47
#define D 8
#define trav(a,x) for (auto& a: x)
#define pb push_back
#define ub upper_bound
#define lb lower_bound
#define sig 0.0000001

using namespace std;

int rectangle(int r, int c, int h, int w, vec<vec<int>> p) {
	vec<vec<int>> ps(r + 1, vec<int>(c + 1, 0));
	
	int l = 0; int r = NEK;
	while (l < r) {
		int mid = (l + r + 1) / 2;
		ffor(i, 1, r) {
			ffor(j, 1, c) {
				ps[i][j] = ps[i - 1][j] + ps[i][j - 1] - ps[i - 1][j - 1] + (p[i - 1][j - 1] >= mid) * 2 - 1;
			}
		}
		int hod = -1;
		For(i, (r - h + 1)) {
			For(j, (c - w + 1)) {
				hod = max(hod, ps[i + h][j + w] - ps[i][j + w] - ps[i + h][j] + ps[i][j]);
			}
		}
		if (hod >= 0) l = mid;
		else r = mid - 1;
	}
}
/*
signed main() {
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);
	int t;
	//cin >> t;
	t = 1;
	while (t--) {
		solve();
	}
	return 0;
}*/

Compilation message (stderr)

quality.cpp: In function 'int rectangle(int, int, int, int, std::vector<std::vector<int> >)':
quality.cpp:45:24: error: declaration of 'int r' shadows a parameter
   45 |         int l = 0; int r = NEK;
      |                        ^
quality.cpp:42:19: note: 'int r' previously declared here
   42 | int rectangle(int r, int c, int h, int w, vec<vec<int>> p) {
      |               ~~~~^
quality.cpp:62:1: warning: no return statement in function returning non-void [-Wreturn-type]
   62 | }
      | ^