Submission #425645

#	Time	Username	Problem	Language	Result	Execution time	Memory
425645		ngrace	Aliens (IOI16_aliens)	C++14	4 / 100	2 ms	288 KiB

aliens

#include "aliens.h"
#include <vector>
#include <iostream>
#include <utility>
using namespace std;
#define v vector
#define pii pair<int,int>
#define fi first
#define se second

v<v<v<int>>> memo;



long long take_photos(int n, int m, int k, std::vector<int> r, std::vector<int> c) {
    if(k==n && m<=100){//sub 1
        v<v<bool>> squares(m,v<bool>(m,false));
        for(int i=0;i<n;i++){
            int low=min(r[i],c[i]);
            int high=max(r[i],c[i]);
            for(int a=low;a<=high;a++){
                for(int b=low;b<=high;b++){
                    squares[a][b]=true;
                }
            }
        }

        long long out=0;
        for(int i=0;i<m;i++){
            for(int j=0;j<m;j++){
                out+=squares[i][j];
            }
        }
        return out;
    }
    else{//assume sub 2
        //as all along diagonal can do dp with n^3
    }
}

Compilation message (stderr)

aliens.cpp: In function 'long long int take_photos(int, int, int, std::vector<int>, std::vector<int>)':
aliens.cpp:39:1: warning: control reaches end of non-void function [-Wreturn-type]
   39 | }
      | ^

• Subtask 1: 4 / 4
• Subtask 2: 0 / 12
• Subtask 3: 0 / 9
• Subtask 4: 0 / 16
• Subtask 5: 0 / 19
• Subtask 6: 0 / 40