oj.uz

Submission #131505

# Submission time Handle Problem Language Result Execution time Memory
131505 2019-07-17T08:25:23 Z sebinkim Bodyguards (CEOI10_bodyguards) C++14
0 / 100
 113 ms 4784 KB 
#include <bits/stdc++.h>

using namespace std;

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

pll A[202020], B[202020];
ll n, m;

void die() { printf("0\n"); exit(0); }

int main()
{
	ll i, j, s1, s2;
	
	scanf("%lld", &n);
	
	for(i=1; i<=n; i++){
		scanf("%lld%lld", &A[i].first, &A[i].second);
    }
	
	sort(A + 1, A + n + 1);
	
	for(i=n; i>=1; i--){
		A[i].second += A[i + 1].second;
    }
	
	scanf("%lld", &m);
	
	for(i=1; i<=m; i++){
		scanf("%lld%lld", &B[i].first, &B[i].second);
	}
	
	sort(B + 1, B + m + 1);
	reverse(B + 1, B + m + 1);
	
	for(i=1, j=1, s1=0, s2=0; i<=n; i++){
		for(; j<=m && B[j].first <= A[i].first; j++){
			s2 += (B[j].first - B[j - 1].first) * B[j].second;
			if(s1 + (B[j].first - A[i - 1].first) * A[i].second < s2) die();
		}
		s1 += (A[i].first - A[i - 1].first) * A[i].second;
		if(s1 < s2 + (A[i].first - B[j - 1].first) * B[j].second) die();
	}
	
	printf("1\n");
	
	return 0;
}

Compilation message

bodyguards.cpp: In function 'int main()':
bodyguards.cpp:17:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%lld", &n);
  ~~~~~^~~~~~~~~~~~
bodyguards.cpp:20:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%lld%lld", &A[i].first, &A[i].second);
   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
bodyguards.cpp:29:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%lld", &m);
  ~~~~~^~~~~~~~~~~~
bodyguards.cpp:32:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%lld%lld", &B[i].first, &B[i].second);
   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Incorrect 2 ms 256 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Incorrect 2 ms 376 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #3
0 / 10.0

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

Subtask #4
0 / 10.0

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

Subtask #5
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 3 ms 376 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6
0 / 10.0

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

Subtask #7
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 504 KB Output is correct
2 Incorrect 4 ms 376 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #8
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 27 ms 1484 KB Output is correct
2 Incorrect 20 ms 1144 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #9
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 58 ms 2680 KB Output is correct
2 Incorrect 49 ms 2364 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #10
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 113 ms 4784 KB Output isn't correct
2 Halted 0 ms 0 KB -