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序列合并 优先队列

题目描述

有两个长度都是N的序列A和B,在A和B中各取一个数相加可以得到序列合并 优先队列_#define

输入输出格式

输入格式:

第一行一个正整数N;

第二行N个整数序列合并 优先队列_#include_02

第三行N个整数序列合并 优先队列_#define_03

【数据规模】

对于50%的数据中,满足1<=N<=1000;

对于100%的数据中,满足1<=N<=100000。

输出格式:

输出仅一行,包含N个整数,从小到大输出这N个最小的和,相邻数字之间用空格隔开。

输入输出样例

输入样例#1:

复制

3
2 6 6
1 4 8

输出样例#1: 复制

3 6 7

#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
//#include
//#pragma GCC optimize(2)
using namespace std;
#define maxn 700005
#define inf 0x7fffffff
//#define INF 1e18
#define rdint(x) scanf("%d",&x)
#define rdllt(x) scanf("%lld",&x)
#define rdult(x) scanf("%lu",&x)
#define rdlf(x) scanf("%lf",&x)
#define rdstr(x) scanf("%s",x)
typedef long long ll;
typedef unsigned long long ull;
typedef unsigned int U;
#define ms(x) memset((x),0,sizeof(x))
const long long int mod = 1e9 + 7;
#define Mod 1000000000
#define sq(x) (x)*(x)
#define eps 1e-3
typedef pair pii;
#define pi acos(-1.0)
//const int N = 1005;
#define REP(i,n) for(int i=0;i<(n);i++)
typedef pair pii;
inline ll rd() {
ll x = 0;
char c = getchar();
bool f = false;
while (!isdigit(c)) {
if (c == '-') f = true;
c = getchar();
}
while (isdigit(c)) {
x = (x << 1) + (x << 3) + (c ^ 48);
c = getchar();
}
return f ? -x : x;
}

ll gcd(ll a, ll b) {
return b == 0 ? a : gcd(b, a%b);
}
int sqr(int x) { return x * x; }


/*ll ans;
ll exgcd(ll a, ll b, ll &x, ll &y) {
if (!b) {
x = 1; y = 0; return a;
}
ans = exgcd(b, a%b, x, y);
ll t = x; x = y; y = t - a / b * y;
return ans;
}
*/

int n;
int a[maxn], b[maxn];
mapmp;
struct node {
int x, y;
bool operator<(const node&t)const {
if (a[x] + b[y] < a[t.x] + b[t.y])return false;
return true;
}
node(int X, int Y) { x = X, y = Y; }
};
priority_queueq;

int main() {
//ios::sync_with_stdio(0);
cin >> n;
for (int i = 1; i <= n; i++)rdint(a[i]);
for (int j = 1; j <= n; j++)rdint(b[j]);
q.push(node(1, 1));
for (int i = 1; i <= n; i++) {
while (mp[make_pair(q.top().x, q.top().y)])q.pop();
int tmpx = q.top().x, tmpy = q.top().y;
cout << a[tmpx] + b[tmpy] << ' ';
mp[make_pair(tmpx, tmpy)] = 1;
q.push(node(tmpx + 1, tmpy)); q.push(node(tmpx, tmpy + 1));
}

return 0;
}

 

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