Submission #642913

#	Time	Username	Problem	Language	Result	Execution time	Memory
642913		valerikk	Worst Reporter 3 (JOI18_worst_reporter3)	C++17	12 / 100	2078 ms	6456 KiB

worst_reporter3

#include <cstdio>

#define MAXN 500005
#define MAXT 1000000001

int N, Q;
int D[MAXN];
int W[MAXN], C[MAXN];

int count(int T, int L) {
  int res = (T >= L);

  int X = T;
  for (int i = 1; i <= N; ++i) {
    int r = T % C[i];
    T /= C[i];
      
    X -= r * W[i] + 1;
    res += (X >= L);
  }
  
  return res;
}

int main() {
  scanf("%d%d", &N, &Q);
  for (int i = 1; i <= N; ++i) {
    scanf("%d", &D[i]);
  }

  W[1] = 1;
  C[1] = D[1];
  for (int i = 2; i <= N; ++i) {
    W[i] = C[i - 1] * W[i - 1];
    C[i] = (D[i] + W[i] - 1) / W[i];
  }

  while (Q--) {
    int T, L, R;
    scanf("%d%d%d", &T, &L, &R);
    printf("%d\n", count(T, L) - count(T, R + 1));
  }
}

Compilation message (stderr)

worst_reporter3.cpp: In function 'int main()':
worst_reporter3.cpp:26:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   26 |   scanf("%d%d", &N, &Q);
      |   ~~~~~^~~~~~~~~~~~~~~~
worst_reporter3.cpp:28:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   28 |     scanf("%d", &D[i]);
      |     ~~~~~^~~~~~~~~~~~~
worst_reporter3.cpp:40:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   40 |     scanf("%d%d%d", &T, &L, &R);
      |     ~~~~~^~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 7
• Subtask 2: 12 / 12
• Subtask 3: 0 / 81