Submission #519042

#	Time	Username	Problem	Language	Result	Execution time	Memory
519042		thegrimbee	Square or Rectangle? (NOI19_squarerect)	C++14	Compilation error	0 ms	0 KiB

squarerect

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

static int T;
static int N, Q, X1, X2, Y1, Y2, q;

bool inside_shape(int X, int Y) {
	q++;
	cout << X << ' ' << Y << '\n';
	if (q > Q) {
		printf("Wrong Answer. Used too many queries.\n");
		exit(0);
	}
	if (X <= 0 || X > N || Y <= 0 || Y > N) {
		printf("Wrong Answer. Query parameters out of range.\n");
		exit(0);
	}
	return (X >= X1 && X <= X2 && Y >= Y1 && Y <= Y2);
}
bool am_i_square(int N, int Q) {
	bool visited[100][100];
	int i, j, tempi, tempj;
	bool temp;
	for (i = 1; i <100; i += 20){
		for (j = 1; j < 100; j += 20){
			if (inside_shape(i, j)){tempi = i; tempj = j;j=101;i=101;}
		}
	} 
	i = tempi;
	j = tempj;
	int lo, hi, mid, len, len2;
	lo  = j - 19;
	hi = j;
	mid = (lo + hi)/ 2;
	if (lo > 0){
		while (lo <= mid && !(tempi == lo && tempj == hi)){
			tempi = lo;
			tempj = hi;
			temp = inside_shape(i, mid);
			visited[i-1][mid-1] = temp;
			if (temp)hi = mid;
			else lo = mid;
			mid = (lo + hi)/2;
			
		}
	}
	else{
		mid = j;
	}
	len = j - mid + (int)visited[i-1][mid-1];
	lo = j + 19 - len;
	hi = 101;
	mid = (lo + hi)/2;
	while (lo <= mid&& !(tempi == lo && tempj == hi)){
			tempi = lo;
			tempj = hi;
			temp = inside_shape(i, mid);
			visited[i-1][mid-1] = temp;
			if (!temp)hi = mid;
			else {lo = mid;if(mid - j + len > 101 - max(1, i - 20))return false;}
			mid = (lo + hi)/2;
		}
	len += mid - j + (int)visited[i-1][mid-1] - 1;
	if (len < 20)return false;
	lo = max(1, i - 19);
	hi = i;
	mid = (lo + hi) / 2;
	temp = false;
	while (lo <= mid&& !(tempi == lo && tempj == hi)){
		tempi = lo;
		tempj = hi;
		temp = inside_shape(mid, j);
		visited[mid-1][j-1] = temp;
		if (temp){hi = mid;if(101 - mid < len)return false;}
		else lo = mid;
		mid = (lo + hi)/2;
	}
	len2 = i - mid + (int)visited[mid-1][j-1];
	temp = inside_shape(i + len-len2, j);
	if (!temp) return false;
	if (((i + len - len2 == 100) && temp) || (temp && !inside_shape(i + len-len2 + 1, j)))return true;
	return false;
}
int main() {
	if (scanf("%d%d%d", &T, &N, &Q) != 3) {
		printf("Input file invalid.\n");
		return 0;
	}
	int mxq = 0;
	for (int i = 0; i < T; i++) {
		if (scanf("%d%d%d%d", &X1, &Y1, &X2, &Y2) != 4) {
			printf("Input file invalid.\n");
			return 0;
		}
		q = 0;
		bool user_ans = am_i_square(N, Q);
		bool act_ans = (Y2 - Y1) == (X2 - X1);
		if (user_ans != act_ans) {
			printf("Wrong Answer.\n");
			exit(0);
		}
		mxq = max(mxq, q);
	}
	printf("Correct. Used %d out of %d queries.\n", mxq, Q);
}

Compilation message (stderr)

squarerect.cpp: In function 'bool am_i_square(int, int)':
squarerect.cpp:41:13: warning: 'tempi' may be used uninitialized in this function [-Wmaybe-uninitialized]
   41 |    visited[i-1][mid-1] = temp;
      |            ~^~
squarerect.cpp:51:10: warning: 'tempj' may be used uninitialized in this function [-Wmaybe-uninitialized]
   51 |  len = j - mid + (int)visited[i-1][mid-1];
      |        ~~^~~~~
/usr/bin/ld: /tmp/ccCEpgTK.o: in function `inside_shape(int, int)':
grader.cpp:(.text+0x0): multiple definition of `inside_shape(int, int)'; /tmp/ccTeMpyI.o:squarerect.cpp:(.text+0x0): first defined here
/usr/bin/ld: /tmp/ccCEpgTK.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/ccTeMpyI.o:squarerect.cpp:(.text.startup+0x0): first defined here
collect2: error: ld returned 1 exit status