if (ch == 'A') a_grade++; else if (ch == 'B') b_grade++; else if (ch == 'C') c_grade++; else if (ch == 'D') d_grade++; else f_grade++;
switch (ch) { case 'A': a_grade++; break; case 'B': b_grade++; break; case 'C': c_grade++; break; case 'D': d_grade++; break; default: f_grade++; break; }
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switch (ch) { case 'A': a_grade++; break; case 'B': b_grade++; break; case 'C': c_grade++; break; case 'D': d_grade++; break; default: f_grade++; break; }