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56 lines
1.1 KiB
56 lines
1.1 KiB
#include <cstdio>
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inline const char *englishEnding(int x)
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{
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x %= 100;
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if (x / 10 == 1)
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return "th";
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if (x % 10 == 1)
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return "st";
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if (x % 10 == 2)
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return "nd";
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if (x % 10 == 3)
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return "rd";
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return "th";
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}
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int main(int argc, char * argv[])
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{
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if (argc != 4)
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return 1;
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FILE *fout = fopen(argv[2], "r");
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FILE *fans = fopen(argv[3], "r");
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if (fout == NULL || fans == NULL)
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return 1;
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int n = 0;
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while (true)
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{
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n++;
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int c, d;
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c = fgetc(fout);
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d = fgetc(fans);
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if (c == EOF && d == EOF)
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break;
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if (c != d)
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{
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if (c == EOF)
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fprintf(stderr, "wrong answer %d%s byte differ - expected EOF found '%c'\n", n, englishEnding(n), (char)d);
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else if (d == EOF)
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fprintf(stderr, "wrong answer %d%s byte differ - expected '%c' found EOF\n", n, englishEnding(n), (char)c);
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else
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fprintf(stderr, "wrong answer %d%s byte differ - expected '%c' found '%c'\n", n, englishEnding(n), (char)c, (char)d);
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return 1;
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}
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}
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if (n == 0)
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fprintf(stderr, "ok empty file\n");
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else if (n == 1)
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fprintf(stderr, "ok single byte\n");
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else
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fprintf(stderr, "ok %d byte\n", n);
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return 0;
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}
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