oj.uz

Submission #87923

# Submission time Handle Problem Language Result Execution time Memory
87923 2018-12-03T08:27:07 Z Good Topovi (COCI15_topovi) C++11
84 / 120
 1816 ms 66560 KB 
/*
ID: blackha5
TASK: test
LANG: C++
*/
#include <bits/stdc++.h>

#define ff first
#define ss second
#define Maxn 100003
#define ll long long
#define pb push_back
#define Inf 1000000009
#define ppb() pop_back()
#define pii pair <int , int>
#define mid(x, y) (x + y) / 2
#define all(x) x.begin(),x.end()
#define llInf 1000000000000000009
#define tr(i, c) for(__typeof(c).begin() i = (c).begin() ; i != (c).end() ; i++)
using namespace std;

ll ans;
int n, k, p;

map <pii, int> E;
map <int, int> R, C;
map <int, int> cntr, cntc;

int main () {
	//freopen ("file.in", "r", stdin);
	//freopen ("file.out", "w", stdout);
	
 	//srand ((unsigned) time ( NULL ));
	//int randomNumber = rand() % 10 + 1;

	scanf ("%d%d%d", &n, &k, &p);
	
	cntr[0] = n, cntc[0] = n;
	for (int i = 1; i <= k; i++) {
		int r, c, x;
		scanf ("%d%d%d", &r, &c, &x);
		
		E[{r, c}] = x;
		cntr[R[r]] --, cntc[C[c]] --;
		R[r] ^= x, C[c] ^= x;	
		cntr[R[r]] ++, cntc[C[c]] ++;
	}
	
	for (auto i: cntr)
		ans += 1ll * (n - cntc[i.ff]) * i.ss;
	
	while (p--) {
		int r1, c1;
		int r2, c2;
		
		scanf ("%d%d%d%d", &r1, &c1, &r2, &c2);
		
		int x = E[{r1, c1}];
		E[{r1, c1}] = 0;
		E[{r2, c2}] = x;
		
		ans -= n - cntc[R[r1]];
		ans -= n - cntr[C[c1]];
		if (R[r1] != C[c1])
			ans ++;
		
		cntr[R[r1]] --, cntc[C[c1]] --;
		R[r1] ^= x, C[c1] ^= x;
		cntr[R[r1]] ++, cntc[C[c1]] ++;
		
		ans += n - cntc[R[r1]];
		ans += n - cntr[C[c1]];
		if (R[r1] != C[c1])
			ans --;
		
		ans -= n - cntc[R[r2]];
		ans -= n - cntr[C[c2]];
		if (R[r2] != C[c2])
			ans ++;
		
		cntr[R[r2]] --, cntc[C[c2]] --;
		R[r2] ^= x, C[c2] ^= x;
		cntr[R[r2]] ++, cntc[C[c2]] ++;
		
		ans += n - cntc[R[r2]];
		ans += n - cntr[C[c2]];
		if (R[r2] != C[c2])
			ans --;
			
		printf ("%lld\n", ans);	
	}	
	return 0;
}

Compilation message

topovi.cpp: In function 'int main()':
topovi.cpp:36:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf ("%d%d%d", &n, &k, &p);
  ~~~~~~^~~~~~~~~~~~~~~~~~~~~~
topovi.cpp:41:9: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf ("%d%d%d", &r, &c, &x);
   ~~~~~~^~~~~~~~~~~~~~~~~~~~~~
topovi.cpp:56:9: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf ("%d%d%d%d", &r1, &c1, &r2, &c2);
   ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
84.0 / 120.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 376 KB Output is correct
2 Correct 1 ms 376 KB Output is correct
3 Correct 2 ms 564 KB Output is correct
4 Correct 3 ms 652 KB Output is correct
5 Correct 1 ms 652 KB Output is correct
6 Correct 167 ms 6452 KB Output is correct
7 Correct 148 ms 6452 KB Output is correct
8 Correct 104 ms 6452 KB Output is correct
9 Correct 102 ms 6732 KB Output is correct
10 Correct 123 ms 7516 KB Output is correct
11 Correct 1500 ms 42648 KB Output is correct
12 Correct 1497 ms 48736 KB Output is correct
13 Correct 1547 ms 54748 KB Output is correct
14 Correct 1816 ms 60804 KB Output is correct
15 Runtime error 1780 ms 66560 KB Memory limit exceeded: We have a known bug that the memory usage is measured incorrectly (possibly because of Meltdown/Spectre patch), so your solution may be correct. Please submit again. Sorry for the inconvenience.
16 Runtime error 1745 ms 66560 KB Memory limit exceeded: We have a known bug that the memory usage is measured incorrectly (possibly because of Meltdown/Spectre patch), so your solution may be correct. Please submit again. Sorry for the inconvenience.
17 Runtime error 1694 ms 66560 KB Memory limit exceeded: We have a known bug that the memory usage is measured incorrectly (possibly because of Meltdown/Spectre patch), so your solution may be correct. Please submit again. Sorry for the inconvenience.
18 Runtime error 1494 ms 66560 KB Memory limit exceeded: We have a known bug that the memory usage is measured incorrectly (possibly because of Meltdown/Spectre patch), so your solution may be correct. Please submit again. Sorry for the inconvenience.
19 Runtime error 1492 ms 66560 KB Memory limit exceeded: We have a known bug that the memory usage is measured incorrectly (possibly because of Meltdown/Spectre patch), so your solution may be correct. Please submit again. Sorry for the inconvenience.
20 Runtime error 1785 ms 66560 KB Memory limit exceeded: We have a known bug that the memory usage is measured incorrectly (possibly because of Meltdown/Spectre patch), so your solution may be correct. Please submit again. Sorry for the inconvenience.