Submission #632153

#	Time	Username	Problem	Language	Result	Execution time	Memory
632153		minhcool	도로 건설 사업 (JOI13_construction)	C++17	0 / 100	1 ms	596 KiB

construction

#include<bits/stdc++.h>
using namespace std;
 
#define y1 y11
#define double long double
#define int long long
#define fi first
#define se second
#define pb push_back
//#define mp make_pair
#define foru(i, l, r) for(int i = l; i <= r; i++)
#define ford(i, r, l) for(int i = r; i >= l; i--)
 
typedef pair<int, int> ii;
typedef pair<ii, int> iii;
typedef pair<ii, ii> iiii;
 
const int N = 55;
 
const int oo = 1e18 + 7, mod = 1e9 + 7;

int n, m, c;
int x[N], y[N];

int a[N], b[N], ccc[N], d[N];

map<int, vector<ii>> mp1, mp2;

vector<pair<int, ii>> edges;

int cc[N], mx[N];

int tol[N];

int sz[N], root[N];

int rt(int x){
    return (x == root[x] ? x : rt(x));
}

bool merge(int x, int y){
    x = rt(x), y = rt(y);
    if(x == y) return 0;
    if(sz[x] < sz[y]) swap(x, y);
    sz[x] += sz[y];
    root[y] = x;
    return 1;
}

void process(){
    cin >> n >> m >> c;
    for(int i = 1; i <= n; i++){
        cin >> x[i] >> y[i];
        mp1[x[i]].pb({y[i], i});
        mp2[y[i]].pb({x[i], i});
    }
    for(int i = 1; i <= m; i++) cin >> a[i] >> b[i] >> ccc[i] >> d[i];
    for(map<int, vector<ii>>::iterator it = mp1.begin(); it != mp1.end(); it++){
        vector<ii> temp = (*it).se;
        sort(temp.begin(), temp.end());
        for(int i = 1; i < temp.size(); i++){
            //cout << (*it).fi << " " << temp[i - 1].fi << " " << temp[i].fi << "\n";
            bool ck = 1;
            for(int j = 1; j <= m; j++){
                bool ck2 = 1;
                if((*it).fi >= a[j] && (*it).fi <= ccc[j]){}
                else ck2 = 0;
                if(temp[i - 1].fi > d[j] || temp[i].fi < b[j]) ck2 = 0;
                if(ck2) ck = 0;
            }
            if(!ck) continue;
            //cout << (*it).fi << " " << temp[i - 1].fi << " " << temp[i].fi << "\n";
            //cout << "1 " << temp[i].se << " " << temp[i - 1].se << "\n";
            edges.pb({temp[i].fi - temp[i - 1].fi, {temp[i].se, temp[i - 1].se}});
        }
    }
    for(map<int, vector<ii>>::iterator it = mp2.begin(); it != mp2.end(); it++){
        vector<ii> temp = (*it).se;
        sort(temp.begin(), temp.end());
        for(int i = 1; i < temp.size(); i++){
            //cout << (*it).fi << " " << temp[i - 1].fi << " " << temp[i].fi << "\n";
            bool ck = 1;
            for(int j = 1; j <= m; j++){
                bool ck2 = 1;
                if((*it).fi >= b[j] && (*it).fi <= d[j]){}
                else ck2 = 0;
                if(temp[i - 1].fi > ccc[j] || temp[i].fi < a[j]) ck2 = 0;
                if(ck2) ck = 0;
            }
            if(!ck) continue;
            //cout << (*it).fi << " " << temp[i - 1].fi << " " << temp[i].fi << "\n";
            //cout << "2 " << (*it).fi << " " << temp[i].se << " " << temp[i - 1].se << "\n";
            edges.pb({temp[i].fi - temp[i - 1].fi, {temp[i].se, temp[i - 1].se}});
        }
    }
    //return;
    sort(edges.begin(), edges.end());
    int cnt = n;
    for(int i = 1; i <= n; i++){
        sz[i] = 1, root[i] = i;
    }
    for(auto it : edges){
        //cout << it.se.fi << " " << it.se.se << "\n";
        //continue;
        if(merge(it.se.fi, it.se.se)){
            cnt--;
            assert(cnt >= 0);
            tol[cnt] = tol[cnt + 1] + it.fi;
            //cout << cnt << " " << tol[cnt] << "\n";
        }
    }
    //return;
    for(int i = 0; i < cnt; i++) tol[i] = oo;
    //for(int i = 0; i <= n; i++) cout << tol[i] << "\n";
    for(int i = 1; i <= c; i++){
        cin >> cc[i] >> mx[i];
        int answer = oo;
        for(int j = 0; j <= mx[i]; j++) answer = min(answer, cc[i] * j + tol[j]);
        cout << (answer == oo ? -1 : answer) << "\n";
    }
}
 
signed main(){
	ios_base::sync_with_stdio(0);
	int t = 1;
	//cin >> t;
	while(t--) process();
}

Compilation message (stderr)

construction.cpp: In function 'void process()':
construction.cpp:61:26: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   61 |         for(int i = 1; i < temp.size(); i++){
      |                        ~~^~~~~~~~~~~~~
construction.cpp:80:26: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   80 |         for(int i = 1; i < temp.size(); i++){
      |                        ~~^~~~~~~~~~~~~

• Subtask 1: 0 / 10
• Subtask 2: 0 / 30
• Subtask 3: 0 / 30
• Subtask 4: 0 / 30