oj.uz

Submission #485899

# Submission time Handle Problem Language Result Execution time Memory
485899 2021-11-09T16:06:03 Z gavgav Fountain (eJOI20_fountain) C++17
100 / 100
 109 ms 7404 KB 
#include <stdio.h>
#define MAX_N 100000
#define MAX_M 200000
#define MAX_S 100000000000000
struct reservoir {
    long long diameters, capacity;
};
struct query {
    int level, volume, rasp;
};
int stiva[MAX_N + 1], next[MAX_M + 1], liste[MAX_N + 1];
long long sumaNec[MAX_N + 1];
struct reservoir reservoirs[MAX_N + 1];
struct query q[MAX_M + 1];
int main() {
    long long height, queries_number, top, i, j;
    long long sumaV;
    scanf( "%lld%lld", &height, &queries_number);
    reservoirs[0].diameters = 1000000001;
    reservoirs[0].capacity = 0;
    for (i = 1; i <= height; ++i)
        scanf( "%lld%lld", &reservoirs[i].diameters, &reservoirs[i].capacity);
    for (i = 1; i <= queries_number; ++i) {
        scanf( "%d%d", &q[i].level, &q[i].volume);
        next[i] = liste[q[i].level];
        liste[q[i].level] = i;
    }
    stiva[0] = 0;
    sumaNec[0] = -MAX_S - 1;
    top = 0;
    sumaV = 0;
    long long left, middle, right;
    for (i = height; i >= 1; --i) {
        while ( reservoirs[i].diameters >= reservoirs[stiva[top]].diameters ) {
            sumaV -= reservoirs[stiva[top]].capacity;
            --top;
        }
        ++top;
        stiva[top] = i;
        sumaNec[top] = sumaV;
        sumaV += reservoirs[i].capacity;
        j = liste[i];
        while (j != 0) {
            right = top + 1;
            left = 0;
            while (right - left > 1 ) {
                middle = (right + left) / 2;
                if (sumaV - sumaNec[middle] >= q[j].volume)
                    left = middle;
                else
                    right = middle;
            }
            q[j].rasp = stiva[left];
            j = next[j];
        }
    }
    for (i = 1; i <= queries_number; ++i)
        printf("%d\n", q[i].rasp);
}

Compilation message

fountain.cpp: In function 'int main()':
fountain.cpp:18:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   18 |     scanf( "%lld%lld", &height, &queries_number);
      |     ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
fountain.cpp:22:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   22 |         scanf( "%lld%lld", &reservoirs[i].diameters, &reservoirs[i].capacity);
      |         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
fountain.cpp:24:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   24 |         scanf( "%d%d", &q[i].level, &q[i].volume);
      |         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct

Subtask #2
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 74 ms 5648 KB Output is correct
2 Correct 107 ms 5828 KB Output is correct

Subtask #3
40.0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 74 ms 5648 KB Output is correct
9 Correct 107 ms 5828 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 44 ms 3404 KB Output is correct
12 Correct 109 ms 7404 KB Output is correct
13 Correct 98 ms 6828 KB Output is correct
14 Correct 82 ms 6436 KB Output is correct
15 Correct 95 ms 6452 KB Output is correct