1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
#include<stdio.h>


int main()
{
    long n;
    long m;
    scanf("%ld", &n);
    scanf("%ld", &m);
    long wzrost[n + 1];
    long long grass[n+1];
    long i;
    for(i = 1; i <=n; i++)
        grass[i] = 0;
    for(i = 1; i <=n; i++)
        scanf("%ld", &(wzrost[i]));
    long day = 0;

    for(i = 0; i < m; i++)
    {
        long long crops = 0;
        long newday;
        scanf("%ld", &newday);
        long long mowersetting;
        scanf("%lld", &mowersetting);
        long diffday = newday - day;
        long j;
        for(j = 1; j <=n; j++)
            grass[j] += (diffday * wzrost[j]);
        for(j = 1; j <=n; j++)
        {
            long long growth = grass[j] - mowersetting;
            if(growth > 0)
            {
                crops += growth;
                grass[j] = mowersetting;
            }
        }
        printf("%lld\n", crops);
        day = newday;
    }
    return 0;
}