Submission #371149

#	Time	Username	Problem	Language	Result	Execution time	Memory
371149		daniel920712	Intergalactic ship (IZhO19_xorsum)	C++14	0 / 100	2070 ms	5740 KiB

xorsum

#include <iostream>
#include <stdio.h>
#include <stdlib.h>

using namespace std;
long long all[200005];
pair < pair < long long , long long > , long long > tt[200005];
long long ans=0,N,M;
void F(long long here)
{
    long long i,j;
    if(here==M)
    {
        for(i=1;i<=N;i++)
        {
            ans+=all[i]*all[i]*(i)*(N-i+1);
            for(j=i+1;j<=N;j++) ans+=all[i]*all[j]*(i)*(N-j+1)*2;
        }
        return;
    }
    F(here+1);
    for(i=tt[here].first.first;i<=tt[here].first.second;i++) all[i]^=tt[here].second;
    F(here+1);
    for(i=tt[here].first.first;i<=tt[here].first.second;i++) all[i]^=tt[here].second;
}
int main()
{
    long long i;
    scanf("%lld",&N);
    for(i=1;i<=N;i++) scanf("%lld",&all[i]);
    scanf("%lld",&M);
    for(i=0;i<M;i++) scanf("%lld",&tt[i].first.first,&tt[i].first.second,&tt[i].second);
    F(0);
    printf("%lld\n",ans);
    return 0;
}

Compilation message (stderr)

xorsum.cpp: In function 'int main()':
xorsum.cpp:32:28: warning: too many arguments for format [-Wformat-extra-args]
   32 |     for(i=0;i<M;i++) scanf("%lld",&tt[i].first.first,&tt[i].first.second,&tt[i].second);
      |                            ^~~~~~
xorsum.cpp:29:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   29 |     scanf("%lld",&N);
      |     ~~~~~^~~~~~~~~~~
xorsum.cpp:30:28: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   30 |     for(i=1;i<=N;i++) scanf("%lld",&all[i]);
      |                       ~~~~~^~~~~~~~~~~~~~~~
xorsum.cpp:31:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   31 |     scanf("%lld",&M);
      |     ~~~~~^~~~~~~~~~~
xorsum.cpp:32:27: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   32 |     for(i=0;i<M;i++) scanf("%lld",&tt[i].first.first,&tt[i].first.second,&tt[i].second);
      |                      ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 4
• Subtask 2: 0 / 5
• Subtask 3: 0 / 6
• Subtask 4: 0 / 9
• Subtask 5: 0 / 8
• Subtask 6: 0 / 11
• Subtask 7: 0 / 19
• Subtask 8: 0 / 30
• Subtask 9: 0 / 8