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Submission #25092

# Submission time Handle Problem Language Result Execution time Memory
25092 2017-06-20T06:28:10 Z 서규호(#1053) Palembang Bridges (APIO15_bridge) C++14
22 / 100
 106 ms 7524 KB 
#include <bits/stdc++.h>

#define lld long long
#define pp pair<int,int>
#define pb push_back
#define MOD 10007
#define left lleft
#define right rright
#define INF 2000000000
#define LINF 1000000000000000000LL
#define next nnext

using namespace std;

int N,K,rear;
lld memo,ans,sum;
lld cnt1,cnt2,cnt3,cnt4;
vector<lld> X;
struct IN{
	int x,y;
}in[100002];
struct data{
	int x,num;
}a[100002],b[100002];

void process1(){
	for(int i=1; i<=N; i++){
		sum += (a[i].x+b[i].x-X[0]-X[0]);
		if(a[i].x > X[0]) cnt2++;
	}
	ans = min(ans,sum);
	int tx,ty;
	tx = ty = 0;
	while(1){
		if(tx == N || a[tx+1].x > X[0]) break;
		tx++;
	}
	for(int i=1; i<X.size(); i++){
		sum += (2*cnt1*(X[i]-X[i-1])); sum -= (2*cnt2*(X[i]-X[i-1]));
		while(1){
			if(tx == N || a[tx+1].x > X[i]) break;
			tx++;
			cnt2--;
		}
		while(1){
			if(ty == N || b[ty+1].x > X[i-1]) break;
			ty++;
			cnt1++; sum += (X[i]-X[i-1])*2;
		}
		ans = min(ans,sum);
	}
}

int main(){
	scanf("%d %d",&K,&N);
	for(int i=1; i<=N; i++){
		int x,y;
		char op1,op2;
		scanf("\n%c %d %c %d",&op1,&x,&op2,&y);
		if(x > y) swap(x,y);
		if(op1 == op2) memo += (y-x);
		else{
			rear++;
			a[rear].x = x; a[rear].num = i;
			b[rear].x = y; b[rear].num = i;
			X.pb(x); X.pb(y);
			memo++;
		}
	}
	N = rear; ans = LINF;
	sort(X.begin(),X.end());
	X.erase(unique(X.begin(),X.end()),X.end());
	sort(a+1,a+N+1,[&](data &x,data &y){
		return x.x < y.x;
	});
	sort(b+1,b+N+1,[&](data &x,data &y){
		return x.x < y.x;
	});
	if(K == 1) process1();
	ans += memo;
	printf("%lld\n",ans);

	return 0;
}

Compilation message

bridge.cpp: In function 'void process1()':
bridge.cpp:38:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i=1; i<X.size(); i++){
                ^
bridge.cpp: In function 'int main()':
bridge.cpp:55:22: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d %d",&K,&N);
                      ^
bridge.cpp:59:41: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("\n%c %d %c %d",&op1,&x,&op2,&y);
                                         ^

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 4368 KB Output is correct
2 Correct 0 ms 4368 KB Output is correct
3 Correct 0 ms 4368 KB Output is correct
4 Correct 0 ms 4368 KB Output is correct
5 Correct 0 ms 4368 KB Output is correct
6 Correct 0 ms 4368 KB Output is correct
7 Correct 0 ms 4368 KB Output is correct
8 Correct 0 ms 4368 KB Output is correct
9 Correct 0 ms 4368 KB Output is correct
10 Correct 0 ms 4368 KB Output is correct
11 Correct 0 ms 4368 KB Output is correct

Subtask #2
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 4368 KB Output is correct
2 Correct 0 ms 4368 KB Output is correct
3 Correct 0 ms 4368 KB Output is correct
4 Correct 0 ms 4368 KB Output is correct
5 Correct 0 ms 4368 KB Output is correct
6 Correct 0 ms 4368 KB Output is correct
7 Correct 0 ms 4368 KB Output is correct
8 Correct 0 ms 4368 KB Output is correct
9 Correct 0 ms 4368 KB Output is correct
10 Correct 0 ms 4368 KB Output is correct
11 Correct 0 ms 4368 KB Output is correct
12 Correct 29 ms 7524 KB Output is correct
13 Correct 106 ms 7524 KB Output is correct
14 Correct 73 ms 7524 KB Output is correct
15 Correct 49 ms 5988 KB Output is correct
16 Correct 53 ms 7524 KB Output is correct
17 Correct 49 ms 7524 KB Output is correct
18 Correct 46 ms 7524 KB Output is correct
19 Correct 103 ms 7524 KB Output is correct
20 Correct 49 ms 7524 KB Output is correct
21 Correct 93 ms 7524 KB Output is correct

Subtask #3
0 / 9.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 4368 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 32.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 4368 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 37.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 4368 KB Output isn't correct
2 Halted 0 ms 0 KB -