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input/code.cpp: In function 'int main()':
input/code.cpp:13:2: warning: 'char* gets(char*)' is deprecated (declared at /usr/include/stdio.h:638) [-Wdeprecated-declarations]
  gets(line);
  ^
input/code.cpp:13:11: warning: 'char* gets(char*)' is deprecated (declared at /usr/include/stdio.h:638) [-Wdeprecated-declarations]
  gets(line);
           ^
input/code.cpp:13:12: warning: ignoring return value of 'char* gets(char*)', declared with attribute warn_unused_result [-Wunused-result]
  gets(line);
            ^
output/ccg6oK4a.o: In function `main':
code.cpp:(.text.startup+0x44): warning: the `gets' function is dangerous and should not be used.

#include <stdio.h>
#include <string.h>

int main() {
	long int i, j;
	unsigned long long summa;
	char c;
	char line [100000];
	char merkki [256];
	int maara [256];
	for (i=0;i<256;i++)
		merkki[i]=maara[i]=0;
	gets(line);
	for (i=0;(c=line[i])!='\0';i++) {
		for (j=0;merkki[j]!=c && merkki[j]!=0;j++);
		merkki[j]=c;
		maara[j]++;
	}
	for(summa=i=0;maara[i]!=0;i++) {
		summa += maara[i] + (maara[i] * (maara[i] - 1)) / 2;
	}
	printf("%llu", summa);
	return 0;
}

Test 1

Group: 1

Verdict: ACCEPTED

Test 2

Group: 1

Verdict: ACCEPTED

Test 3

Group: 1

Verdict: ACCEPTED

Test 4

Group: 1

Verdict: ACCEPTED

Test 5

Group: 1

Verdict: ACCEPTED

Test 6

Group: 2

Verdict: ACCEPTED

Test 7

Group: 2

Verdict: ACCEPTED

Test 8

Group: 2

Verdict: ACCEPTED

Test 9

Group: 2

Verdict: ACCEPTED

Test 10

Group: 2

Verdict: ACCEPTED

Test 11

Group: 3

Verdict: WRONG ANSWER

Test 12

Group: 3

Verdict: ACCEPTED

Test 13

Group: 3

Verdict: WRONG ANSWER

Test 14

Group: 3

Verdict: WRONG ANSWER

Test 15

Group: 3

Verdict: WRONG ANSWER