Problem p04023 (C++)

Buggy submission (status: Runtime Error):
/*
Author: CNYALI_LK
LANG: C++
PROG: e.cpp
Mail: cnyalilk@vip.qq.com
*/
#include <bits/stdc++.h>
#define debug(...) fprintf(stderr, __VA_ARGS__)
#define DEBUG printf("Passing [%s] in LINE %lld\n", __FUNCTION__, __LINE__)
#define Debug debug("Passing [%s] in LINE %lld\n", __FUNCTION__, __LINE__)
#define all(x) x.begin(), x.end()
#define x first
#define y second
using namespace std;
typedef long long ll;
typedef pair<ll, ll> pii;
const signed inf = 0x3f3f3f3f;
const double eps = 1e-8;
const double pi = acos(-1.0);
template <class T> ll chkmin(T &a, T b) { return a > b ? a = b, 1 : 0; }
template <class T> ll chkmax(T &a, T b) { return a < b ? a = b, 1 : 0; }
template <class T> T sqr(T a) { return a * a; }
template <class T> T mmin(T a, T b) { return a < b ? a : b; }
template <class T> T mmax(T a, T b) { return a > b ? a : b; }
template <class T> T aabs(T a) { return a < 0 ? -a : a; }
template <class T> ll dcmp(T a, T b) { return a > b; }
template <ll *a> ll cmp_a(ll x, ll y) { return a[x] < a[y]; }
#define min mmin
#define max mmax
#define abs aabs
namespace io {
const ll SIZE = (1 << 21) + 1;
char ibuf[SIZE], *iS, *iT, obuf[SIZE], *oS = obuf, *oT = oS + SIZE - 1, c,
                                       qu[55];
ll f, qr;
// getchar
#define gc()                                                                   \
  (iS == iT ? (iT = (iS = ibuf) + fread(ibuf, 1, SIZE, stdin),                 \
               (iS == iT ? EOF : *iS++))                                       \
            : *iS++)
// prll the remaining part
inline void flush() {
  fwrite(obuf, 1, oS - obuf, stdout);
  oS = obuf;
}
// putchar
inline void putc(char x) {
  *oS++ = x;
  if (oS == oT)
    flush();
}
// input a signed lleger
inline void read(signed &x) {
  for (f = 1, c = gc(); c < '0' || c > '9'; c = gc())
    if (c == '-')
      f = -1;
  for (x = 0; c <= '9' && c >= '0'; c = gc())
    x = x * 10 + (c & 15);
  x *= f;
}

inline void read(long long &x) {
  for (f = 1, c = gc(); c < '0' || c > '9'; c = gc())
    if (c == '-')
      f = -1;
  for (x = 0; c <= '9' && c >= '0'; c = gc())
    x = x * 10 + (c & 15);
  x *= f;
}
inline void read(char &x) { x = gc(); }
inline void read(char *x) {
  while ((*x = gc()) == '\n' || *x == ' ' || *x == '\r')
    ;
  while (!(*x == '\n' || *x == ' ' || *x == '\r'))
    *(++x) = gc();
  *x = 0;
}
template <typename A, typename... B> inline void read(A &x, B &...y) {
  read(x);
  read(y...);
}
// prll a signed lleger
inline void write(signed x) {
  if (!x)
    putc('0');
  if (x < 0)
    putc('-'), x = -x;
  while (x)
    qu[++qr] = x % 10 + '0', x /= 10;
  while (qr)
    putc(qu[qr--]);
}

inline void write(long long x) {
  if (!x)
    putc('0');
  if (x < 0)
    putc('-'), x = -x;
  while (x)
    qu[++qr] = x % 10 + '0', x /= 10;
  while (qr)
    putc(qu[qr--]);
}
inline void write(char x) { putc(x); }
inline void write(const char *x) {
  while (*x) {
    putc(*x);
    ++x;
  }
}
inline void write(char *x) {
  while (*x) {
    putc(*x);
    ++x;
  }
}
template <typename A, typename... B> inline void write(A x, B... y) {
  write(x);
  write(y...);
}
// no need to call flush at the end manually!
struct Flusher_ {
  ~Flusher_() { flush(); }
} io_flusher_;
} // namespace io
using io ::putc;
using io ::read;
using io ::write;
ll w[100005], t, a[100005], pw[100005];
void Work(ll t, ll x, ll pm) {
  if (t == 1) {
    a[1] += pm;
    a[x + 1] -= pm;
    return;
  }
  pw[t - 1] += pm * (x / w[t - 1]);
  x %= w[t - 1];
  if (!x)
    return;
  ll r = max(upper_bound(w + 1, w + t + 1, x) - w - 1, 1L);
  Work(r, x, pm);
}
int main() {
#ifdef cnyali_lk
  freopen("e.in", "r", stdin);
  freopen("e.out", "w", stdout);
#endif
  ll n, q, xw;
  read(n, q);
  w[t = 1] = n;
  for (ll i = 1; i <= q; ++i) {
    read(xw);
    while (t && w[t] >= xw)
      --t;
    w[++t] = xw;
  }
  pw[t] = 1;
  for (ll i = t; i; --i) {
    if (pw[i])
      Work(i, w[i], pw[i]);
  }
  for (ll i = 1; i <= n; ++i)
    write(a[i] += a[i - 1], '\n');
  return 0;
}


Fixed submission:
/*
Author: CNYALI_LK
LANG: C++
PROG: e.cpp
Mail: cnyalilk@vip.qq.com
*/
#include <bits/stdc++.h>
#define debug(...) fprintf(stderr, __VA_ARGS__)
#define DEBUG printf("Passing [%s] in LINE %lld\n", __FUNCTION__, __LINE__)
#define Debug debug("Passing [%s] in LINE %lld\n", __FUNCTION__, __LINE__)
#define all(x) x.begin(), x.end()
#define x first
#define y second
using namespace std;
typedef long long ll;
typedef pair<ll, ll> pii;
const signed inf = 0x3f3f3f3f;
const double eps = 1e-8;
const double pi = acos(-1.0);
template <class T> ll chkmin(T &a, T b) { return a > b ? a = b, 1 : 0; }
template <class T> ll chkmax(T &a, T b) { return a < b ? a = b, 1 : 0; }
template <class T> T sqr(T a) { return a * a; }
template <class T> T mmin(T a, T b) { return a < b ? a : b; }
template <class T> T mmax(T a, T b) { return a > b ? a : b; }
template <class T> T aabs(T a) { return a < 0 ? -a : a; }
template <class T> ll dcmp(T a, T b) { return a > b; }
template <ll *a> ll cmp_a(ll x, ll y) { return a[x] < a[y]; }
#define min mmin
#define max mmax
#define abs aabs
namespace io {
const ll SIZE = (1 << 21) + 1;
char ibuf[SIZE], *iS, *iT, obuf[SIZE], *oS = obuf, *oT = oS + SIZE - 1, c,
                                       qu[55];
ll f, qr;
// getchar
#define gc()                                                                   \
  (iS == iT ? (iT = (iS = ibuf) + fread(ibuf, 1, SIZE, stdin),                 \
               (iS == iT ? EOF : *iS++))                                       \
            : *iS++)
// prll the remaining part
inline void flush() {
  fwrite(obuf, 1, oS - obuf, stdout);
  oS = obuf;
}
// putchar
inline void putc(char x) {
  *oS++ = x;
  if (oS == oT)
    flush();
}
// input a signed lleger
inline void read(signed &x) {
  for (f = 1, c = gc(); c < '0' || c > '9'; c = gc())
    if (c == '-')
      f = -1;
  for (x = 0; c <= '9' && c >= '0'; c = gc())
    x = x * 10 + (c & 15);
  x *= f;
}

inline void read(long long &x) {
  for (f = 1, c = gc(); c < '0' || c > '9'; c = gc())
    if (c == '-')
      f = -1;
  for (x = 0; c <= '9' && c >= '0'; c = gc())
    x = x * 10 + (c & 15);
  x *= f;
}
inline void read(char &x) { x = gc(); }
inline void read(char *x) {
  while ((*x = gc()) == '\n' || *x == ' ' || *x == '\r')
    ;
  while (!(*x == '\n' || *x == ' ' || *x == '\r'))
    *(++x) = gc();
  *x = 0;
}
template <typename A, typename... B> inline void read(A &x, B &...y) {
  read(x);
  read(y...);
}
// prll a signed lleger
inline void write(signed x) {
  if (!x)
    putc('0');
  if (x < 0)
    putc('-'), x = -x;
  while (x)
    qu[++qr] = x % 10 + '0', x /= 10;
  while (qr)
    putc(qu[qr--]);
}

inline void write(long long x) {
  if (!x)
    putc('0');
  if (x < 0)
    putc('-'), x = -x;
  while (x)
    qu[++qr] = x % 10 + '0', x /= 10;
  while (qr)
    putc(qu[qr--]);
}
inline void write(char x) { putc(x); }
inline void write(const char *x) {
  while (*x) {
    putc(*x);
    ++x;
  }
}
inline void write(char *x) {
  while (*x) {
    putc(*x);
    ++x;
  }
}
template <typename A, typename... B> inline void write(A x, B... y) {
  write(x);
  write(y...);
}
// no need to call flush at the end manually!
struct Flusher_ {
  ~Flusher_() { flush(); }
} io_flusher_;
} // namespace io
using io ::putc;
using io ::read;
using io ::write;
ll w[100005], t, a[100005], pw[100005];
void Work(ll t, ll x, ll pm) {
  if (t == 1) {
    a[1] += pm;
    a[x + 1] -= pm;
    return;
  }
  pw[t - 1] += pm * (x / w[t - 1]);
  x %= w[t - 1];
  if (!x)
    return;
  ll r = upper_bound(w + 1, w + t + 1, x) - w;
  Work(r, x, pm);
}
int main() {
#ifdef cnyali_lk
  freopen("e.in", "r", stdin);
  freopen("e.out", "w", stdout);
#endif
  ll n, q, xw;
  read(n, q);
  w[t = 1] = n;
  for (ll i = 1; i <= q; ++i) {
    read(xw);
    while (t && w[t] >= xw)
      --t;
    w[++t] = xw;
  }
  pw[t] = 1;
  for (ll i = t; i; --i) {
    if (pw[i])
      Work(i, w[i], pw[i]);
  }
  for (ll i = 1; i <= n; ++i)
    write(a[i] += a[i - 1], '\n');
  return 0;
}