Submission #127377

#	Time	Username	Problem	Language	Result	Execution time	Memory
127377		sealnot123	Popeala (CEOI16_popeala)	C++14	26 / 100	2032 ms	5752 KiB

popeala

#include<bits/stdc++.h>
#define x first
#define y second
#define all(x) (x).begin(),(x).end()
#define SZ(x) (int)(x).size()
#define push_back pb
#define emplace_back eb
using namespace std;
typedef long long LL;
typedef double DD;
typedef long double LD;
typedef pair<int,int> PII;
typedef pair<LL,LL> PLL;
const int T = 20007, N = 52;
LL dp[T][N], last[T][N], qs[T];
char str[T];
int main(){
	int n, t, s;
	int i,j,k,l,a,b,c,d;
	scanf("%d%d%d",&n,&t,&s);
	for(i=1;i<=t;i++) scanf("%lld",&qs[i]), qs[i]+=qs[i-1];
	for(i=1;i<=n;i++){
		scanf(" %s",str+1);
		for(j=1;j<=t;j++){
			if(str[j]=='1') last[j][i] = last[j-1][i];
			else last[j][i] = j;
			/*printf("%lld ",last[j][i]);*/
		}
		/*printf("\n");*/
	}
	for(i=1;i<=s;i++) dp[0][i] = 1e16;
	for(i=1;i<=t;i++) dp[i][0] = 1e16;
	for(i=1;i<=t;i++){
		sort(last[i]+1, last[i]+1+n);
		for(j=1;j<=s;j++){
			dp[i][j] = 1e16;
			LL p = n;
			for(k=i;k>0;k--){
				while(last[i][p]>=k) p--;
				dp[i][j] = min(dp[i][j], dp[k-1][j-1] + (qs[i]-qs[k-1])*p);
			}
			/*printf("%lld ",dp[i][j]);*/
		}
		/*printf("\n");*/
	}
	for(i=1;i<=s;i++) printf("%lld\n",dp[t][i]);
	return 0;
}

Compilation message (stderr)

popeala.cpp: In function 'int main()':
popeala.cpp:19:12: warning: unused variable 'l' [-Wunused-variable]
  int i,j,k,l,a,b,c,d;
            ^
popeala.cpp:19:14: warning: unused variable 'a' [-Wunused-variable]
  int i,j,k,l,a,b,c,d;
              ^
popeala.cpp:19:16: warning: unused variable 'b' [-Wunused-variable]
  int i,j,k,l,a,b,c,d;
                ^
popeala.cpp:19:18: warning: unused variable 'c' [-Wunused-variable]
  int i,j,k,l,a,b,c,d;
                  ^
popeala.cpp:19:20: warning: unused variable 'd' [-Wunused-variable]
  int i,j,k,l,a,b,c,d;
                    ^
popeala.cpp:20:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d%d",&n,&t,&s);
  ~~~~~^~~~~~~~~~~~~~~~~~~
popeala.cpp:21:40: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  for(i=1;i<=t;i++) scanf("%lld",&qs[i]), qs[i]+=qs[i-1];
                    ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~
popeala.cpp:23:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf(" %s",str+1);
   ~~~~~^~~~~~~~~~~~~

• Subtask 1: 8 / 8
• Subtask 2: 9 / 9
• Subtask 3: 9 / 9
• Subtask 4: 0 / 74