/ Randle /

记录详情

Time Exceeded


  
# 状态 耗时 内存占用
#1 Accepted 5ms 2.25 MiB
#2 Accepted 11ms 6.25 MiB
#3 Accepted 17ms 6.375 MiB
#4 Accepted 19ms 6.25 MiB
#5 Accepted 388ms 6.582 MiB
#6 Accepted 314ms 6.473 MiB
#7 Accepted 319ms 6.375 MiB
#8 Accepted 328ms 6.625 MiB
#9 Accepted 301ms 6.469 MiB
#10 Accepted 290ms 6.375 MiB
#11 Accepted 1039ms 5.445 MiB
#12 Accepted 1110ms 5.098 MiB
#13 Accepted 212ms 6.5 MiB
#14 Accepted 228ms 6.434 MiB
#15 Accepted 756ms 6.559 MiB
#16 Accepted 973ms 5.715 MiB
#17 Accepted 1106ms 5.766 MiB
#18 Accepted 1060ms 6.684 MiB
#19 Time Exceeded ≥3001ms ≥7.09 MiB
#20 Accepted 1193ms 6.875 MiB

代码

#include <stdio.h>//chenhao
#include <iostream>
#include <cstring>
#include <algorithm>
typedef long long ll;
int maxh = 12;
const int maxn = 5000;
int n,m;
using namespace std;
int head[maxn],nex[100005<<1],dis[100005<<1],q;
ll w[100005<<1];
int dep[maxn];
struct edge {
int a,b;ll w;
} edges[100005<<1];
int fa[maxn][15];
ll maxx[maxn][15];
inline ll min(ll a,ll b){
return a<b?a:b;
}
inline ll max(ll a,ll b){
return a>b?a:b;
}
//-------------------------辅助类函数-----------------------------
ll read(){
ll num = 0;
char c;
bool flag = false;
while ((c = getchar()) == ' ' || c == '\n' || c == '\r');
if (c == '-')
flag = true;
else
num = c - '0';
while (isdigit(c = getchar()))
num = num * 10 + c - '0';
return (flag ? -1 : 1) * num;
}
bool operator<(const edge &ed1,const edge &ed2) {
return ed1.w<ed2.w;
}
void connect(int x,int y,ll z) {
nex[++q]=head[x],head[x] = q,dis[q] = y;w[q] = z;
nex[++q]=head[y],head[y] = q,dis[q] = x;w[q] = z;
}
void printAns(ll a,ll b) {
if(a!=b) {
cout<<"madoka"<<endl;
} else {
cout<<"Baozika"<<endl;
}
}
int father[maxn];
int find(int a) {
if(father[a]==a) {
return a;
} else {
return find(father[a]);
}
}
void merge(int a,int b) {
int ffa = find(a),ffb = find(b);
father[ffa] = ffb;
}
void dfs(int a) {
//cout<<a;
for(int i = head[a]; i; i=nex[i]) {
int to = dis[i];
if(to!=fa[a][0]) {
dep[to] = dep[a]+1;
fa[to][0] = a;
maxx[to][0] = w[i];
dfs(to);
}
}
}
edge edgeq[6500];
long long rr;
void init(int update) {
if(update) {
for(int i = 0;i<=q;i++) nex[i] = 0;
for(int i = 0;i<=q;i++) dis[i] = 0;
for(int i = 0;i<=n;i++) head[i] = 0;
q = 0;
// sort(edgeq+1,edgeq+1+rr);
for(int i= 1; i<=n; i++)father[i] = i;
int need = n-1;
for(int i = 1; i<=rr&&need; i++) {
if(find(edgeq[i].a)!=find(edgeq[i].b)) {
connect(edgeq[i].a,edgeq[i].b,edgeq[i].w);
need--;
merge(edgeq[i].a,edgeq[i].b);
}
}
}
for(int i = 1;i<=n;i++){
for(int j = 0;j<=maxh;j++){
maxx[i][j] = 0;
fa[i][j] = 0;
}
}
dep[1] = 1;
fa[1][0] = 1;
dfs(1);
for(int h = 1; h<=maxh; h++) {
for(int i = 1; i<=n; i++) {
fa[i][h] = fa[fa[i][h-1]][h-1];
maxx[i][h] = max(maxx[i][h-1],maxx[fa[i][h-1]][h-1]);
}
}
}
ll ans(int a,int b) {
ll ret = 0;
if(dep[a]<dep[b]) {
swap(a,b);
}
for(int i = maxh; i>=0; i--) {
if(dep[fa[a][i]]>=dep[b]) {
ret = max(ret,maxx[a][i]);
a = fa[a][i];
}
}
if(a!=b) {
for(int i = maxh; i>=0; i--) {
if(fa[a][i]!=fa[b][i]) {
ret = max(ret,maxx[a][i]);
ret = max(ret,maxx[b][i]);
a = fa[a][i];
b = fa[b][i];
}
}
ret = max(ret,maxx[a][0]);
ret = max(ret,maxx[b][0]);
} else {
return ret;
}
return ret;
}
void addLine(int a,int b,ll z)
{
edge ed;
ed.a = a,ed.b = b,ed.w = z;
int index = upper_bound(edgeq+1,edgeq+rr+1,ed)-edgeq;
for(int i = rr;i>=index;i--){
edgeq[i+1] = edgeq[i];
}
edgeq[index] = ed;
rr++;
}
int main()
{
scanf("%d%d",&n,&m);
for(int i = 1; i<=m; i++)
{
int x=read(),y=read();ll z=read();
edges[i].a =x,edges[i].b=y,edges[i].w=z;
}
sort(edges+1,edges+1+m);
for(int i= 1; i<=n; i++)father[i] = i;
int need = n-1;
for(int i = 1; i<=m&&need; i++) {
if(find(edges[i].a)!=find(edges[i].b)) {
connect(edges[i].a,edges[i].b,edges[i].w);
edgeq[++rr] = edges[i];
need--;
merge(edges[i].a,edges[i].b);
}
}
init(0);
int tt;
scanf("%d",&tt);
int updated = 1;
for(int i = 1; i<=tt; i++) {
char str[10];
cin>>str;
if(str[0]=='g') {
int x,y,z,w;
if(!updated) init(1);
updated = 1;
x=read(),y=read(),z=read(),w=read();
printAns(ans(x,y),ans(z,w));
} else {
updated = 0;
ll x=read(),y=read(),z=read();
if(z!=998244353)
addLine(x,y,z);
}
}
return 0;
}

信息

递交者
类型
递交
题目
玩游戏(CQ直辖市noip模拟赛联考) T2
题目数据
下载
语言
C++
递交时间
2017-11-04 20:26:27
评测时间
2017-11-04 20:26:27
评测机
分数
95
总耗时
≥12680ms
峰值内存
≥7.09 MiB