Submission #526732

#	Time	Username	Problem	Language	Result	Execution time	Memory
526732		Olympia	Connecting Supertrees (IOI20_supertrees)	C++17	Compilation error	0 ms	0 KiB

supertrees

#include <cmath>
#include <cassert>
#include <iostream>
#include <set>
#include <climits>
#include <algorithm>
#include <vector>
#include <iomanip>
#include <type_traits>
#include <string>
#include <queue>
#include <map>
#pragma GCC target ("avx2")
#pragma GCC optimization ("O3")
#pragma GCC optimization ("Ofast")
#pragma GCC optimization ("unroll-loops")

using namespace std;

void construct (vector<vector<int>> grid) {
    vector<vector<int>> ans(grid.size());
    for (int i = 0; i < grid.size(); i++) {
        grid[i].assign(grid[0].size(), 0);
    }
    set<int> s;
    for (int i = 0; i < grid.size(); i++) {
        for (int j = 0; j < grid.size(); j++) {
            s.insert(grid[i][j]);
        }
    }
    if (s.count(1)) {
        for (int i = 1; i < grid.size(); i++) {
            grid[i][0] = grid[0][i] = 1;
        }
    }
    build(grid);
}

int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);

}

Compilation message (stderr)

supertrees.cpp:14: warning: ignoring '#pragma GCC optimization' [-Wunknown-pragmas]
   14 | #pragma GCC optimization ("O3")
      | 
supertrees.cpp:15: warning: ignoring '#pragma GCC optimization' [-Wunknown-pragmas]
   15 | #pragma GCC optimization ("Ofast")
      | 
supertrees.cpp:16: warning: ignoring '#pragma GCC optimization' [-Wunknown-pragmas]
   16 | #pragma GCC optimization ("unroll-loops")
      | 
supertrees.cpp: In function 'void construct(std::vector<std::vector<int> >)':
supertrees.cpp:22:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   22 |     for (int i = 0; i < grid.size(); i++) {
      |                     ~~^~~~~~~~~~~~~
supertrees.cpp:26:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   26 |     for (int i = 0; i < grid.size(); i++) {
      |                     ~~^~~~~~~~~~~~~
supertrees.cpp:27:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   27 |         for (int j = 0; j < grid.size(); j++) {
      |                         ~~^~~~~~~~~~~~~
supertrees.cpp:32:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   32 |         for (int i = 1; i < grid.size(); i++) {
      |                         ~~^~~~~~~~~~~~~
supertrees.cpp:36:5: error: 'build' was not declared in this scope
   36 |     build(grid);
      |     ^~~~~