Submission #378557

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
378557	2021-03-17 01:44:11	daniel920712	Chessboard (IZhO18_chessboard)	C++14	47 / 100	2085 ms	161260 KiB

chessboard

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#include <iostream>
#include <stdio.h>
#include <stdlib.h>
#include <vector>
#include <map>
#include <set>
using namespace std;
vector < long long > have;
long long con1[100005];
long long con2[100005];
map < pair < long long , long long > , long long > con[100005];
set < pair < long long , long long > > vis;
int main()
{
    long long N,M,ans=1e18,t,a,b,c,d,i,j,k,x,y;
    scanf("%lld %lld",&N,&M);
    for(i=1;i<N;i++)
    {
        if(N%i==0)
        {
            have.push_back(i);
            con1[i]=(N/i)*(N/i)/2;
            con2[i]=(N/i)*(N/i)/2+(N/i)*(N/i)%2;
            //printf("%lld %lld %lld\n",i,con1[i],con2[i]);
        }
    }
    while(M--)
    {
        scanf("%lld %lld %lld %lld",&a,&b,&c,&d);
 
 
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Compilation message (stderr)

chessboard.cpp: In function 'int main()':
chessboard.cpp:16:28: warning: unused variable 't' [-Wunused-variable]
   16 |     long long N,M,ans=1e18,t,a,b,c,d,i,j,k,x,y;
      |                            ^
chessboard.cpp:16:42: warning: unused variable 'k' [-Wunused-variable]
   16 |     long long N,M,ans=1e18,t,a,b,c,d,i,j,k,x,y;
      |                                          ^
chessboard.cpp:17:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   17 |     scanf("%lld %lld",&N,&M);
      |     ~~~~~^~~~~~~~~~~~~~~~~~~
chessboard.cpp:30:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   30 |         scanf("%lld %lld %lld %lld",&a,&b,&c,&d);
      |         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 8 / 8
• Subtask 2: 8 / 8
• Subtask 3: 15 / 15
• Subtask 4: 16 / 16
• Subtask 5: 0 / 23
• Subtask 6: 0 / 30