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June 2018 Update

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Ingy döt Net 2018-06-22 20:57:24 +00:00
parent ba8067c3b7
commit 22f33d4004
5278 changed files with 84726 additions and 14379 deletions
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124
Task/I-before-E-except-after-C/D/i-before-e-except-after-c.d Normal file
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import std.file;
import std.stdio;
int main(string[] args) {
if (args.length < 2) {
stderr.writeln(args[0], " filename");
return 1;
}
int cei, cie, ie, ei;
auto file = File(args[1]);
foreach(line; file.byLine) {
auto res = eval(cast(string) line);
cei += res.cei;
cie += res.cie;
ei += res.ei;
ie += res.ie;
}
writeln("CEI: ", cei, "; CIE: ", cie);
writeln("EI: ", ei, "; IE: ", ie);
writeln("'I before E when not preceded by C' is ", verdict(ie, ei));
writeln("'E before I when preceded by C' is ", verdict(cei, cie));
return 0;
}
string verdict(int a, int b) {
import std.format;
if (a > 2*b) {
return format("plausible with evidence %f", cast(double)a/b);
}
return format("not plausible with evidence %f", cast(double)a/b);
}
struct Evidence {
int cei;
int cie;
int ei;
int ie;
}
Evidence eval(string word) {
enum State {
START,
C,
E,
I,
CE,
CI,
}
State state;
Evidence cnt;
for(int i=0; i<word.length; ++i) {
char c = word[i];
switch(state) {
case State.START:
if (c == 'c') {
state = State.C;
}
if (c == 'e') {
state = State.E;
}
if (c == 'i') {
state = State.I;
}
break;
case State.C:
if (c == 'e') {
state = State.CE;
} else if (c == 'i') {
state = State.CI;
} else if (c != 'c') {
state = State.START;
}
break;
case State.E:
if (c == 'c') {
state = State.C;
} else if (c == 'i') {
cnt.ei++;
state = State.I;
} else if (c != 'e') {
state = State.START;
}
break;
case State.I:
if (c == 'c') {
state = State.C;
} else if (c == 'e') {
cnt.ie++;
state = State.E;
} else if (c != 'i') {
state = State.START;
}
break;
case State.CE:
if (c == 'i') {
cnt.cei++;
state = State.I;
}
if (c == 'c') {
state = State.C;
}
state = State.START;
break;
case State.CI:
if (c == 'e') {
cnt.cie++;
state = State.E;
}
if (c == 'c') {
state = State.C;
}
state = State.START;
break;
default:
assert(0);
}
}
return cnt;
}