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tries_contacts.js
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tries_contacts.js
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process.stdin.resume();
process.stdin.setEncoding('ascii');
var input_stdin = "";
var input_stdin_array = "";
var input_currentline = 0;
process.stdin.on('data', function (data) {
input_stdin += data;
});
process.stdin.on('end', function () {
input_stdin_array = input_stdin.split("\n");
main();
});
function readLine() {
return input_stdin_array[input_currentline++];
}
/////////////// ignore above this line ////////////////////
function main() {
var n = parseInt(readLine());
var str = ';';
var result = '';
var indexTable = {};
// Source http://codegists.com/snippet/javascript/tries-contactjs_tennisonchan_javascript
for(var a0 = 0; a0 < n; a0++){
var op_temp = readLine().split(' ');
var contact = op_temp[1];
if (op_temp[0] == 'add') {
indexTable[contact[0]] = indexTable[contact[0]] || '';
indexTable[contact[0]] += ';' + contact;
} else {
var table = indexTable[contact[0]] || '';
result += table.split(';' + contact).length - 1 + '\n';
}
}
console.log(result);
/*
test 2
for(var a0 = 0; a0 < n; a0++){
var op_temp = readLine().split(' ');
if(op_temp[0] == 'add'){
str += op_temp[1]+';';
}else{
res += str.split(';'+op_temp[1]).length-1+'\n';
}
}
console.log( res );
*/
/*
test 1
for(var a0 = 0; a0 < n; a0++){
var op_temp = readLine().split(' ');
var arr = [];
var res = 0;
if(op_temp[0] == 'add'){
arr.push(op_temp[1]);
}else{
var k = 0;
var len = arr.length;
for(var i=0;i<len;i++){
if( arr[i].indexOf(op_temp[1]) > -1 ) k++;
}
res = res + k + '\n';
}
}*/
}