Submission #971849

#	Time	Username	Problem	Language	Result	Execution time	Memory
971849		VinhLuu	Teams (IOI15_teams)	C++17	Compilation error	0 ms	0 KiB

teams

//#pragma GCC optimize("O3,unroll-loops")
//#pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")
#include <bits/stdc++.h>
#define ll long long
#define fi first
#define se second
#define pb push_back
#define all(lmao) lmao.begin(), lmao.end()

using namespace std;

typedef pair<int,int> pii;
typedef tuple<int,int,int> tp;
const int N = 1e6 + 5;
int block = 555;
const int mod = 1e9 + 7;
//const ll oo = 5e18;

int n;
vector<pii> vr;

void init(int _n, vector<int> A, vector<int> B){
    n = _n;
    for(int i = 0; i < n; i ++){

        vr.pb({A[i], B[i]});
    }
    sort(all(vr), [&](pii x,pii y){return x.fi < y.fi;});
}

int can(int m,vector<int> K){
    int ptr = -1;
    sort(all(K));
    bool ff = true;
    priority_queue<int,vector<int>, greater<int>> pq;
    for(auto j : K){
        while(ptr + 1 < vr.size() && vr[ptr + 1].fi <= j) pq.push(vr[ptr + 1].se), ptr++;
        int u = j;
        while(u){
            if(pq.empty()) return 0;
            if(pq.top() >= j) u--;
            pq.pop();
        }
    }
    return 1;
}
#define lpv
#ifdef lpv
int n_;
vector<int> a_, b_;
int inQ;
int inM;
vector<int> inK;
signed main(){
    ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);

    #define task "v"
    if(fopen(task ".inp","r")){
        freopen(task ".inp","r",stdin);
        freopen(task ".out","w",stdout);
    }

    cin >> n_ >> inQ;
    for (int i = 0; i < n_; ++i){
        int x, y; cin >> x >> y;
        a_.pb(x);
        b_.pb(y);
    }
    init(n_, a_, b_);

    while (inQ--) {
        cin >> inM;
        for (int i = 0; i < inM; ++i){
            int x; cin >> x; inK.pb(x);
        }
        cout << can(inM, inK) << "\n";
    }
}
#endif // lpv

Compilation message (stderr)

teams.cpp: In function 'int can(int, std::vector<int>)':
teams.cpp:37:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   37 |         while(ptr + 1 < vr.size() && vr[ptr + 1].fi <= j) pq.push(vr[ptr + 1].se), ptr++;
      |               ~~~~~~~~^~~~~~~~~~~
teams.cpp:34:10: warning: unused variable 'ff' [-Wunused-variable]
   34 |     bool ff = true;
      |          ^~
teams.cpp:31:13: warning: unused parameter 'm' [-Wunused-parameter]
   31 | int can(int m,vector<int> K){
      |         ~~~~^
teams.cpp: In function 'int main()':
teams.cpp:59:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   59 |         freopen(task ".inp","r",stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
teams.cpp:60:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   60 |         freopen(task ".out","w",stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
/usr/bin/ld: /tmp/ccjgZ0q7.o: in function `main':
grader.c:(.text.startup+0x0): multiple definition of `main'; /tmp/cczlcyM8.o:teams.cpp:(.text.startup+0x0): first defined here
/usr/bin/ld: /tmp/ccjgZ0q7.o: in function `main':
grader.c:(.text.startup+0x88): undefined reference to `init(int, int*, int*)'
/usr/bin/ld: grader.c:(.text.startup+0x242): undefined reference to `can(int, int*)'
collect2: error: ld returned 1 exit status