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Here you can Sed posuere consectetur est at lobortis. Donec ullamcorper nulla non metus auctor fringilla. Maecenas sed diam eget risus varius blandit sit amet non magna. Donec id elit non mi porta gravida at eget metus. Praesent commodo cursus magna, vel scelerisque nisl consectetur et.

HTML

            
              <div id="app">
  <!-- <form>
    <div>
      Counter Mode:
      <input type="checkbox" onfocus="this.select()" v-model="counterMode" />
    </div>
  </form> -->

  <div class="code">
    <pre id="cpp"></pre>
  </div>

  <div class="memory-container">
    <table class="memory">
      <tr v-for="(count, i) in cellCounts">
        <td
          :class="['memory-cell', j-1 === queryMatches[i] && 'query']"
          v-for="j in count" :colspan="cellStrides[i]"
        >
          <span v-if="counterMode">{{j}}</span>
          <span v-else>{{(j-1) % dimensionSizeValues[i]}}</span>
        </td>
      </tr>

      <tr>
        <td
          :class="['memory-cell', 'memory-data', i === queryMatches[dimensionCount.value - 1] && 'query']"
          v-for="(x, i) in numbers">
          {{x}}
        </td>
      </tr>
    </table>
  </div>
</div>

<template id="cpp-template">
  // Enter number of dimensions

  <br />

  int N = <input
    type="number"
    min="1"
    max="5"
    onfocus="this.select()"
    v-model.number="dimensionCount.value"
    v-on:input="updateDimensionCount"
  />;

  <br />
  <br />

  // Enter dimension sizes

  <br />  int arr

  <span v-for="(d, i) in dimensionSizes">
    [
    <input
      type="number"
      min="1"
      max="5"
      onfocus="this.select()"
      v-model.number="d.value"
      v-on:input="updateDimensionSize(i, $event)"
    />
    ]
  </span> = {

  <span v-if="numbers.length <= 5">
    <span v-for="(n, i) in numbers">
      <span>{{n}}</span>
      <span v-if="i+1 < numbers.length">, </span>
    </span>
    };
  </span>

  <span v-else>
    <span v-for="(n, i) in numbers.slice(0, 3)">
      <span>{{n}}</span>
      <span v-if="i+1 < numbers.length">, </span>
    </span>

    ...

    , <span>{{numbers[numbers.length - 1]}}</span>

    };
  </span>

  <br />
  <br />

  // Run a query on the array

  <br />

  cout << arr

  <span v-for="(q, i) in queries">
    [
    <input
      type="number"
      onfocus="this.select()"
      v-model.number="q.value"
      :style="{width: ((q.value.toString().length || 1) * 13) + 'px'}"
    />
    ]
  </span>;
</template>

            
          
!

CSS

            
              /* global */

* {
  padding: 0;
  margin: 0;

  box-sizing: border-box;

  font-family: sans-serif;
  font-size: 20px;
}

input[type=number] {
  box-sizing: content-box;
  width: 13px;
  border: none;
  box-shadow: 0 2px 0 gray;
  outline: none;
  padding: 0 6px;
  text-align: center;
}

input[type=number]::-webkit-outer-spin-button,
input[type=number]::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

input[type=number] {
  -moz-appearance: textfield;
}


/* #app */
#app {
  padding: 20px;
}

/* .code */

.code {
  margin: 30px 0;
}

.code * {
  font-family: monospace;
}

.code pre {
  line-height: 32px;
}

.code input {
  background-color: #f0f0f0;
}


/* .memory */

.memory-container {
  overflow-x: auto;
}

.memory {
  border-collapse: collapse;
}

.memory-cell {
  /* text-align: center; */
  padding: 10px;
  background-color: #ccc;
  border: 12px solid #eee;
}

.memory-cell.query {
  background-color: #666;
  color: white;
}

.memory-cell.memory-data {
  background-color: #aaa;
}

.memory-cell.memory-data.query {
  background-color: #222;
  color: white;
}

            
          
!

JS

            
              const cppCode = document.getElementById("cpp-template").innerHTML;
document.getElementById("cpp").innerHTML = cppCode.replace(/\s{2,}/g, "");

const app = new Vue({
  el: "#app",

  data: {
    counterMode: false,

    dimensionCount: { value: 2, prevValue: 2 },

    dimensionSizes: [{ value: 2, prevValue: 2 }, { value: 3, prevValue: 3 }],
    defaultDimensionSize: { value: 2, prevValue: 2 },

    queries: [{ value: 0, prevValue: 0 }, { value: 2, prevValue: 2 }],
    defaultQuery: { value: 0, prevValue: 0 }
  },

  computed: {
    cellCounts() {
      // C_k = D_1 * D_2 ... D_k
      // C_k = C_0 / S_k

      return this.dimensionSizeValues
        .slice(1)
        .reduce((acc, x) => acc.concat(acc[acc.length - 1] * x), [
          this.dimensionSizeValues[0]
        ]);
    },

    cellStrides() {
      // S_k = D_(k+1) * D_(k+2) ... D_n
      // S_k = C_0 / C_k

      return this.cellCounts.map(count => this.dataCount / count);
    },

    dimensionSizeValues() {
      return this.dimensionSizes.map(d => d.value);
    },

    numbers() {
      const numbers = [];

      for (let i = 0; i < this.dataCount; i++) {
        numbers.push(10000 + (i + 1));
      }

      return numbers;
    },

    queryMatches() {
      // M_k = ((Q_1 * S_1) + (Q_2 * S_2)  ...  (Q_k * S_k)) / S_k

      return this.queries.map(q => q.value).reduce((acc, _, i) => {
        return acc.concat(
          this.queries
            .slice(0, i + 1)
            .reduce((acc2, q, j) => acc2 + q.value * this.cellStrides[j], 0) /
            this.cellStrides[i]
        );
      }, []);
    },

    dataCount() {
      // C_0 = D_1 * D_2 ... D_n
      return this.dimensionSizeValues.reduce((acc, d) => acc * d);
    }
  },

  methods: {
    /**
     * Convert input to a clamped number
     * @param {string} x
     * @param {number[]} range
     * @param {string} range[].lo - Lower limit of range
     * @param {string} range[].hi - Upper limit of range
     */
    toNumberClamped(x, [lo, hi]) {
      x = Number(x);

      if (isNaN(x)) {
        return null;
      }

      if (x < lo) {
        return lo;
      }

      if (x > hi) {
        return hi;
      }

      return x;
    },

    /**
     * Update number of dimensionSizes
     * @param {event} e
     */
    updateDimensionCount(e) {
      const currDimensionCount = this.dimensionCount;

      const nextDimensionCountValue = this.toNumberClamped(
        e.currentTarget.value,
        [1, 5]
      );

      if (nextDimensionCountValue === null) {
        currDimensionCount.value = currDimensionCount.prevValue;
      } else {
        currDimensionCount.prevValue = nextDimensionCountValue;
        currDimensionCount.value = nextDimensionCountValue;
      }

      this.updateDimensionSizes();

      this.updateQueries();
    },

    /**
     * Update dimensionSizes
     */
    updateDimensionSizes() {
      const nextDimensions = [];

      for (let i = 0; i < this.dimensionCount.value; i++) {
        nextDimensions.push(
          this.dimensionSizes[i] || Object.assign({}, this.defaultDimensionSize)
        );
      }

      this.dimensionSizes = nextDimensions;
    },

    /**
     * Update `ith` dimension
     * @param {number} i - Index of dimension
     * @param {event} e
     */
    updateDimensionSize(i, e) {
      const dimension = this.dimensionSizes[i];

      const nextDimensionValue = this.toNumberClamped(e.currentTarget.value, [
        1,
        4
      ]);

      if (nextDimensionValue === null) {
        dimension.value = dimension.prevValue;
      } else {
        dimension.prevValue = nextDimensionValue;
        dimension.value = nextDimensionValue;
      }
    },

    /**
     * Update queries
     */
    updateQueries() {
      const nextQueries = [];

      for (let i = 0; i < this.dimensionCount.value; i++) {
        nextQueries.push(
          this.queries[i] || Object.assign({}, this.defaultQuery)
        );
      }

      this.queries = nextQueries;
    },

    /**
     * Update `ith` query
     * @param {number} i - Index of query
     * @param {event} e
     */
    updateQuery(i, e) {
      const query = this.queries[i];

      console.log(e.currentTarget.value);
      const nextQueryValue = this.toNumberClamped(e.currentTarget.value, [
        -Infinity,
        Infinity
      ]);

      if (nextQueryValue === null) {
        query.value = query.prevValue;
      } else {
        query.prevValue = nextQueryValue;
        query.value = nextQueryValue;
      }
    }
  }
});

            
          
!
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