Submission #498465

#	Time	Username	Problem	Language	Result	Execution time	Memory
498465		Yuisuyuno	Palembang Bridges (APIO15_bridge)	C++14	22 / 100	42 ms	7288 KiB

bridge

//Nguyen Huu Hoang Minh
#include <bits/stdc++.h>
#define sz(x) int(x.size())
#define all(x) x.begin(),x.end()
#define reset(x) memset(x, 0,sizeof(x))
#define pb push_back
#define mp make_pair
#define fi first
#define se second
#define N 100005
#define remain(x) if (x > MOD) x -= MOD
#define ii pair<int, int>
#define iiii pair< ii , ii >
#define viiii vector< iiii >
#define vi vector<int>
#define vii vector< ii >
#define bit(x, i) (((x) >> (i)) & 1)
#define Task "test"
#define int long long

using namespace std;

typedef long double ld;
const int inf = 1e10;
const int minf = -1e10;

int n, k;
struct ppl{
    int s, t;
    bool operator < (const ppl &a) const{
        return s+t < a.s + a.t;
    }
};
vector<ppl> Q;
int ans = 0;

void readfile()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0);cout.tie(0);
    if (fopen(Task".inp","r"))
    {
        freopen(Task".inp","r",stdin);
        //freopen(Task".out","w",stdout);
    }
    cin >> k >> n;
    for(int i=1; i<=n; i++){
        char a, b;
        int x, y;
        cin >> a >> x >> b >> y;
        if (a==b) ans += abs(x-y);
        else{
            Q.pb({x,y});
        }
    }
}

void solve1(){
    vector<int> val;
    for(int i=0; i<Q.size(); i++) val.pb(Q[i].s), val.pb(Q[i].t);
    sort(all(val));
    //val.erase(unique(all(val)),val.end());
    int x = val[(val.size()+1)/2 - 1];
    for(int i=0; i<Q.size(); i++){
        ans += abs(Q[i].s - x) + abs(Q[i].t - x) + 1;
    }
    //cout << x << '\n';
    cout << ans;
}

void proc()
{
    if (k==1){
        solve1();
        return;
    }
}

signed main()
{
    readfile();
    proc();
    return 0;
}

Compilation message (stderr)

bridge.cpp: In function 'void solve1()':
bridge.cpp:60:19: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<ppl>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   60 |     for(int i=0; i<Q.size(); i++) val.pb(Q[i].s), val.pb(Q[i].t);
      |                  ~^~~~~~~~~
bridge.cpp:64:19: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<ppl>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   64 |     for(int i=0; i<Q.size(); i++){
      |                  ~^~~~~~~~~
bridge.cpp: In function 'void readfile()':
bridge.cpp:43:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   43 |         freopen(Task".inp","r",stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 8 / 8
• Subtask 2: 14 / 14
• Subtask 3: 0 / 9
• Subtask 4: 0 / 32
• Subtask 5: 0 / 37