Submission #2740005

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Source Code Expand

#include <stdio.h>

int main() {
  int N;
  scanf("%d", &N);
  char* str = new char[N + 1];
  scanf("%s", str);

  int* numE = new int[N];
  for(int i=0;i<N;i++) {
    numE[i] = 0;
  }

  int sumE = 0, sumW = 0;
  for(int i=0;i<N;i++) {
    if(str[i] == 'E') {
      sumE++;
    }
    if(str[i] == 'W') {
      sumW++;
    }
  }

  int tmp = 0;
  for(int i=0;i<N;i++) {
    if(str[i] == 'E') {
      numE[i] = tmp;
      tmp++;
    }
  }

  int min = N;
  for(int i = 1;i<N - 1;i++) {
    tmp = (i - 1 - numE[i]) + (sumE - numE[i+1]);
    if(min > tmp) {
      min = tmp;
    }
  }
  if(str[0] == 'E') {
    if(min > (sumE - 1)) {
      min = sumE - 1;
    }
  } else {
    if(min > sumE) {
      min = sumE;
    }
  }
  if(str[N-1] == 'W') {
    if(min > (sumW - 1)) {
      min = sumW - 1;
    }
  } else {
    if(min > sumW) {
      min = sumW;
    }
  }

  printf("%d\n", min);

  return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:5:18: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", &N);
                  ^
./Main.cpp:7:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%s", str);
                   ^

Judge Result