Submission #297552

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
297552	2020-09-11 15:54:11	Hehehe	Mate (COCI18_mate)	C++14	100 / 100	435 ms	26360 KiB

mate

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#include<bits/stdc++.h> //:3
#define DIM 2010
#define MOD 1000000007
using namespace std;
//ifstream cin ("date.in");
//ofstream cout ("date.out");
int v[DIM],c[DIM][DIM],f[DIM],dp[DIM][30][30],a[DIM][30];
char s[DIM],l1,l2;
int n,i,j,x,y,q,lg;
int main (){
    scanf("%s",s+1);
    n = strlen(s+1);
    for (i=1;i<=n;i++)
        v[i] = s[i] - 'a' + 1;
    c[0][0] = c[1][0] = c[1][1] = 1;
    for (i=2;i<=n;i++){
        c[i][0] = 1;
        for (j=1;j<=i;j++){
            c[i][j] = c[i-1][j] + c[i-1][j-1];
            if (c[i][j] >= MOD)
                c[i][j] -= MOD;
        }}
    for (i=1;i<=n;i++)
        for (j=i+1;j<=n;j++)
            a[i][v[j]]++;
 
 
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Compilation message (stderr)

mate.cpp: In function 'int main()':
mate.cpp:13:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   13 |     scanf("%s",s+1);
      |     ~~~~~^~~~~~~~~~
mate.cpp:43:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   43 |     scanf("%d",&q);
      |     ~~~~~^~~~~~~~~
mate.cpp:45:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   45 |         scanf("%d %c %c",&lg,&l1,&l2);
      |         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 100 / 100