Submission #37474

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
37474	2017-12-25 16:14:52	HardNut	Bootfall (IZhO17_bootfall)	C++14	100 / 100	973 ms	4824 KiB

bootfall

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#include<bits/stdc++.h>
using namespace std;
const int N = 250005;
const int mod = 1e9 + 7;
typedef long long ll;
int n, a[505], sum;
vector<int> vec;
int ans[N];
int dp[N];
bool used[505];
void add(int v) {
    for (int i = sum; i >= 0; i--) {
        dp[i + v] += dp[i];
        if (dp[i + v] >= mod)
            dp[i + v] -= mod;
    }
    sum += v;
}
void del(int v) {
    sum -= v;
    for (int i = 0; i <= sum; i++) {
        dp[i + v] = (dp[i + v] - dp[i] + mod);
        if (dp[i + v] >= mod)
            dp[i + v] -= mod;
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

bootfall.cpp: In function 'int main()':
bootfall.cpp:75:30: warning: format '%d' expects argument of type 'int', but argument 2 has type 'std::vector<int>::size_type {aka long unsigned int}' [-Wformat=]
     printf("%d\n", vec.size());
                              ^
bootfall.cpp:76:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int i = 0; i < vec.size(); i++)
                       ^
bootfall.cpp:70:9: warning: unused variable 'cnt' [-Wunused-variable]
     int cnt = 0;
         ^
bootfall.cpp:37:20: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d", &n);
                    ^
bootfall.cpp:40:27: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d", &a[i]);
                           ^

• Subtask 1: 6 / 6
• Subtask 2: 7 / 7
• Subtask 3: 15 / 15
• Subtask 4: 16 / 16
• Subtask 5: 21 / 21
• Subtask 6: 35 / 35