12 lines
260 B
C
12 lines
260 B
C
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int firstUniqChar(char * s){
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int *arr = calloc(256, sizeof(int));
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int i;
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for(i = 0; i < strlen(s); i++)
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arr[s[i]] = arr[s[i]] + 1;
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for(i = 0; i < strlen(s); i++) {
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if(arr[s[i]] == 1)
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return i;
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}
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return -1;
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}
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