Submission #396424

#	Time	Username	Problem	Language	Result	Execution time	Memory
396424		Blondie	Aliens (IOI16_aliens)	C++17	Compilation error	0 ms	0 KiB

aliens

#include<bits/stdc++.h>
 
using namespace std;
 
typedef long long ll;
typedef pair<int, int> pii;
typedef long double ld;
 
#define F first
#define S second
 
const int MOD = 1e9 + 7;//XXX
const int C = 26;//XXX
 
void add(int &x, int y){
	x += y;
	while (x >= MOD) x -= MOD;
	while (x < 0) x += MOD;
}
 
int fix(int x){
	while (x >= MOD) x -= MOD;
	while (x < 0) x += MOD;
	return x;
}
 
int pw(int a, int b){
	int ret = 1;
	while (b){
		if (b & 1)
			ret = 1ll*ret*a%MOD;
		b >>= 1;
		a = 1ll*a*a%MOD;
	}
	return ret;
}
 
const int MAXN = 1e2 + 10;

int n, m, k;

int a[MAXN][MAXN];

void solve() {
	cin >> n >> m >> k;
	assert(n <= 50 && m <= 100 && k == n);
	for(int i = 0; i < n; i++) {
		int r, c; cin >> r >> c; 
		if(r > c)
			swap(r, c);
		int len = c-r+1;
		for(int row = r; row < r+len; row++) {
			for(int col = r; col < r+len; col++) {
				a[row][col] = 1;
			}
		}
	}
	int answer = 0;
	for(int i = 0; i < m; i++) {
		for(int j = 0; j < m; j++) {
			cerr << a[i][j] << " ";
			answer += a[i][j];
		}
		cerr << "\n";
	}
	cout << answer << "\n";
}

int main(){
	ios::sync_with_stdio(false);
	cin.tie(0);
	cout.tie(0);
	//cout << fixed << setprecision(6);
	
	int te = 1;	
	//cin >> te;
	for (int w = 1; w <= te; w++){
		//cout << "Case #" << w << ": ";
		solve();
	}
	return 0;
}

Compilation message (stderr)

/tmp/ccyej8p3.o: In function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'
/tmp/ccLCnoMG.o:aliens.cpp:(.text.startup+0x0): first defined here
/tmp/ccyej8p3.o: In function `main':
grader.cpp:(.text.startup+0xf0): undefined reference to `take_photos(int, int, int, std::vector<int, std::allocator<int> >, std::vector<int, std::allocator<int> >)'
collect2: error: ld returned 1 exit status