oj.uz

Submission #197628

# Submission time Handle Problem Language Result Execution time Memory
197628 2020-01-22T04:37:45 Z arnold518 Pairs (IOI07_pairs) C++14
30 / 100
 43 ms 2552 KB 
#include <bits/stdc++.h>
using namespace std;

typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;

const int MAXN = 1e5;

struct Point
{
	int x, y, z;
	Point() {}
	Point(int x) : x(x) {}
	Point(int x, int y) : x(x), y(y) {}
	Point(int x, int y, int z) : x(x), y(y), z(z) {}
};

int B, N, D, M;
Point A[MAXN+10];
ll ans;

int main()
{
	int i, j;

	scanf("%d%d%d%d", &B, &N, &D, &M);
	for(i=1; i<=N; i++)
	{
		if(B==1) scanf("%d", &A[i].x);
		if(B==2) scanf("%d%d", &A[i].x, &A[i].y);
		if(B==3) scanf("%d%d%d", &A[i].x, &A[i].y, &A[i].z);
	}

	if(B==1)
	{
		sort(A+1, A+N+1, [&](const Point &p, const Point &q) { return p.x<q.x; });
		for(i=1; i<=N; i++) ans+=upper_bound(A+1, A+N+1, Point(A[i].x+D), [&](const Point &p, const Point &q) { return p.x<q.x; })-lower_bound(A+1, A+N+1, Point(A[i].x-D), [&](const Point &p, const Point &q) { return p.x<q.x; });
		ans-=N; ans/=2;
		printf("%lld", ans);
		return 0;
	}
}

Compilation message

pairs.cpp: In function 'int main()':
pairs.cpp:25:9: warning: unused variable 'j' [-Wunused-variable]
  int i, j;
         ^
pairs.cpp:27:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d%d%d", &B, &N, &D, &M);
  ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
pairs.cpp:30:17: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   if(B==1) scanf("%d", &A[i].x);
            ~~~~~^~~~~~~~~~~~~~~
pairs.cpp:31:17: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   if(B==2) scanf("%d%d", &A[i].x, &A[i].y);
            ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
pairs.cpp:32:17: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   if(B==3) scanf("%d%d%d", &A[i].x, &A[i].y, &A[i].z);
            ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 376 KB Output is correct

Subtask #2
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct

Subtask #3
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 28 ms 2040 KB Output is correct
2 Correct 27 ms 1912 KB Output is correct

Subtask #4
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 43 ms 2300 KB Output is correct
2 Correct 33 ms 2300 KB Output is correct

Subtask #5
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 40 ms 2424 KB Output is correct
2 Correct 37 ms 2400 KB Output is correct
3 Correct 34 ms 2296 KB Output is correct

Subtask #6
0 / 7.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 376 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #7
0 / 7.0

# Verdict Execution time Memory Grader output
1 Incorrect 21 ms 2040 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #8
0 / 8.0

# Verdict Execution time Memory Grader output
1 Incorrect 24 ms 2268 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #9
0 / 8.0

# Verdict Execution time Memory Grader output
1 Incorrect 28 ms 2552 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #10
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 380 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #11
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 28 ms 2064 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #12
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 29 ms 2268 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #13
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 30 ms 2256 KB Output isn't correct
2 Halted 0 ms 0 KB -