Submission #124842

#	Time	Username	Problem	Language	Result	Execution time	Memory
124842		nvmdava	Aliens (IOI16_aliens)	C++17	Compilation error	0 ms	0 KiB

aliens

#include "aliens.h"
#include <bits/stdc++.h>
using namespace std;

int temp[1000005];

vector<pair<int, int> > v;

long long dp[505][505];

long long take_photos(int n, int m, int k, vector<int> r, vector<int> c) {
	memset(temp, -1, sizeof temp);
	
    for(int i = 0; i < n; i++)
    	temp[min(c[i], r[i])] = 1 + max(r[i], c[i]);
	
	int mx = -1;
	v.push_back({-1, -1});
	for(int i = 0; i < m; i++)
		if(temp[i] > mx)
			v.push_back({i, mx = temp[i]});
	
	n = v.size() - 1;
	k = min(k, n);
	
	memset(dp, 0x3f3f, sizeof dp);
	dp[0][0] = 0;
	
	for(int i = 1; i <= k; i++){
		for(int j = 1; j <= n; j++){
			for(int l = 0; l < j; l++){
				dp[i][j] = min(dp[i][j], dp[i - 1][l] + (v[j].second - v[l + 1].first) * (v[j].second - v[l + 1].first));
			}
		}
	}
	return dp[k][n];
}



int main() {
    int n, m, k;
    scanf("%d %d %d", &n, &m, &k);
    std::vector<int> r(n), c(n);
    for (int i = 0; i < n; i++) {
        scanf("%d %d", &r[i], &c[i]);
    }
    long long ans = take_photos(n, m, k, r, c);
    
    
    printf("%lld\n", ans);
    return 0;
}

Compilation message (stderr)

aliens.cpp: In function 'long long int take_photos(int, int, int, std::vector<int>, std::vector<int>)':
aliens.cpp:14:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
     for(int i = 0; i < n; i++)
     ^~~
aliens.cpp:17:2: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
  int mx = -1;
  ^~~
aliens.cpp: In function 'int main()':
aliens.cpp:43:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d %d %d", &n, &m, &k);
     ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
aliens.cpp:46:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d %d", &r[i], &c[i]);
         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~
/tmp/ccQIMK0l.o: In function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'
/tmp/ccPy3J5C.o:aliens.cpp:(.text.startup+0x0): first defined here
collect2: error: ld returned 1 exit status