Submission #935805

#	Time	Username	Problem	Language	Result	Execution time	Memory
935805		onepunchac168	Sum Zero (RMI20_sumzero)	C++14	61 / 100	632 ms	22712 KiB

sumzero

//------------------------------------\\
//   ------------------------------   \\
//  |  created by Dinh Manh Hung   |  \\
//  |      tht.onepunchac168       |  \\
//  |     THPT CHUYEN HA TINH      |  \\
//  |      HA TINH, VIET NAM       |  \\
//  |           Siuuu              |  \\
//   ------------------------------   \\
//------------------------------------\\

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

#define            task     ""
#define       file(name)    if (fopen(name".inp", "r")) { freopen(name".inp", "r", stdin); freopen(name".out", "w", stdout); }
#define             ldb     long double
#define              pb     push_back
#define              eb     emplace_back
#define              fi     first
#define              se     second
#define           all(x)    begin(x),end(x)
#define       uniquev(v)    v.resize(unique(all(v))-v.begin())
#define       rep(i,a,b)    for (int i=a;i<=b;i++)
#define        cntbit(v)    __builtin_popcountll(v)
#define         gcd(a,b)    __gcd(a,b)
#define         lcm(a,b)    ((1LL*a*b)/__gcd(a,b))
#define          mask(x)    (1LL<<(x))
#define     readbit(x,i)    ((x>>i)&1)
#define             Yes     cout << "Yes"
#define             YES     cout << "YES"
#define              No     cout << "No"
#define              NO     cout << "NO"

typedef long long ll;
typedef pair <ll,ll> ii;
typedef pair <ll,ii> iii;
typedef pair <ii,ii> iiii;

ll dx[]= {1,-1,0,0,1,-1,1,-1};
ll dy[]= {0,0,-1,1,1,-1,-1,1};

const ldb PI = acos (-1);
//const ll mod=978846151;
//const ll base=29;
const ll mod=1e9+7;
const char nl = '\n';

inline int ReadInt()
{
    char co;
    for (co = getchar(); co < '0' || co > '9'; co = getchar());
    int xo = co - '0';
    for (co = getchar(); co >= '0' && co <= '9'; co = getchar())
        xo = (xo<<1) + (xo<<3) + co - '0';
    return xo;
}

void WriteInt(int xo)
{
    if (xo > 9)
        WriteInt(xo / 10);
    putchar(xo % 10 + '0');
}

// DEBUG
/*
void __print(int x) {cerr << x;}
void __print(long x) {cerr << x;}
void __print(long long x) {cerr << x;}
void __print(unsigned x) {cerr << x;}
void __print(unsigned long x) {cerr << x;}
void __print(unsigned long long x) {cerr << x;}
void __print(float x) {cerr << x;}
void __print(double x) {cerr << x;}
void __print(long double x) {cerr << x;}
void __print(char x) {cerr << '\'' << x << '\'';}
void __print(const char *x) {cerr << '\"' << x << '\"';}
void __print(const string &x) {cerr << '\"' << x << '\"';}
void __print(bool x) {cerr << (x ? "true" : "false");}

template<typename T, typename V>
void __print(const pair<T, V> &x) {cerr << '{'; __print(x.first); cerr << ','; __print(x.second); cerr << '}';}
template<typename T>
void __print(const T &x) {int f = 0; cerr << '{'; for (auto &i: x) cerr << (f++ ? "," : ""), __print(i); cerr << "}";}
void _print() {cerr << "]\n";}
template <typename T, typename... V>
void _print(T t, V... v) {__print(t); if (sizeof...(v)) cerr << ", "; _print(v...);}


#ifndef ONLINE_JUDGE
#define debug(x...) cerr << "[" << #x << "] = ["; _print(x)
#else
#define debug(x...)
#endif
*/

/* END OF TEMPLATE*/

// ================= Solution =================//


void onepunchac168();

signed main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    file(task);
    int tests;
    tests=1;
    //cin>>tests;
    while (tests--)
    {
        onepunchac168();
    }
}

const int N=4e5+5;
ll n,q;
ll c[N];
int nxt[N];
int nxta[N][7];
int ps[15];
void onepunchac168()
{
    cin>>n;
    c[0]=0;
    ps[0]=1;
    for (int i=1;i<=9;i++)
    {
        ps[i]=ps[i-1]*8;
    }
    vector <ii> target;
    for (int i=1;i<=n;i++)
    {
        cin>>c[i];
        c[i]+=c[i-1];
        target.pb({c[i],i});
    }
    target.pb({0,0});
    sort (target.begin(),target.end());
    ll tmp=0;
    for (int i=n;i>=1;i--)
    {
        ll aa=lower_bound(target.begin(),target.end(),ii(c[i-1],i-1))-target.begin();
        ll rr=0;
        if (aa!=target.size()-1&&target[aa+1].fi==c[i-1])
        {
            rr=target[aa+1].se;
        }
        if (rr!=0)
        {
            if (tmp==0||tmp>rr)
            {
                tmp=rr;
            }
        }
        nxt[i]=tmp;
        nxta[i][0]=tmp;
        for (int h=1;h<=6;h++)
        {
            int kk=nxta[i][h-1];
            for (int j=1;j<8;j++)
            {
                if (kk!=0)
                {
                    kk=nxta[kk+1][h-1];
                }
            }
            nxta[i][h]=kk;
        }
    }
    if (n>1e5)
    {
        return;
    }
    cin>>q;
    while (q--)
    {
        int l,r;
        cin>>l>>r;
        int pp=l;
        int res=0;
        for (int i=6;i>=0;i--)
        {
            if (nxta[pp][i]!=0&&nxta[pp][i]<=r)
            {
                res+=ps[i];
                pp=nxta[pp][i]+1;
            }
        }
        while (nxt[pp]!=0&&nxt[pp]<=r)
        {
            res++;
            pp=nxt[pp]+1;
        }
        cout<<res<<nl;
    }
}
// goodbye see ya

Compilation message (stderr)

sumzero.cpp:1:1: warning: multi-line comment [-Wcomment]
    1 | //------------------------------------\\
      | ^
sumzero.cpp: In function 'void onepunchac168()':
sumzero.cpp:147:15: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  147 |         if (aa!=target.size()-1&&target[aa+1].fi==c[i-1])
      |             ~~^~~~~~~~~~~~~~~~~
sumzero.cpp: In function 'int main()':
sumzero.cpp:15:66: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   15 | #define       file(name)    if (fopen(name".inp", "r")) { freopen(name".inp", "r", stdin); freopen(name".out", "w", stdout); }
      |                                                           ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
sumzero.cpp:108:5: note: in expansion of macro 'file'
  108 |     file(task);
      |     ^~~~
sumzero.cpp:15:99: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   15 | #define       file(name)    if (fopen(name".inp", "r")) { freopen(name".inp", "r", stdin); freopen(name".out", "w", stdout); }
      |                                                                                            ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
sumzero.cpp:108:5: note: in expansion of macro 'file'
  108 |     file(task);
      |     ^~~~

• Subtask 1: 22 / 22
• Subtask 2: 39 / 39
• Subtask 3: 0 / 39