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#import <objc/objc.h>
#import <objc/Object.h>
#import <Foundation/Foundation.h>
 
@implementation TestObj
int main()
 
 
 
 
int N = 15;
int tri[N][N];
 
/*
tri[0][0] = 3;
tri[1][0] = 7; tri[1][1] = 4;
tri[2][0] = 2; tri[2][1] = 4; tri[2][2] = 6;
tri[3][0] = 8; tri[3][1] = 5; tri[3][2] = 9; tri[3][3] = 3;
*/
 
FILE *fp;
fp=fopen("input.txt", "r");
 
int i, j = 0;
 
for(i = 0; i < N; i++) {
 for(j = 0; j < N; j++)
  if (j<=i)
   fscanf(fp, "%d ",&tri[i][j]);
  //else tri[i][j] = 0;
}
 
/*
for (int i = 0; i < N; i++)
{
 for (int j = 0; j < N; j++)
  printf("%d ",tri[i][j]);
  printf("\n");
}
*/
 
for(i = N-2; i >= 0; i--) // i = n-2
 for(j = 0; j <= i; j++)
  if(tri[i+1][j] > tri[i+1][j+1])
   tri[i][j] += tri[i+1][j];
  else
   tri[i][j] += tri[i+1][j+1];
 
printf("%d \n",tri[0][0]);
 
/*
for (int i = 0; i < 4; i++)
{
 for (int j = 0; j < 4; j++)
  printf("%d ",tri[i][j]);
  printf("\n");
}
*/
 
 
	return 0;
}
@end

prog.m:6:1: warning: cannot find interface declaration for ‘TestObj’
 int main()
 ^~~
prog.m: In function ‘main’:
prog.m:11:1: error: parameter ‘N’ is initialized
 int N = 15;
 ^~~
prog.m:22:1: error: expected declaration specifiers before ‘fp’
 fp=fopen("input.txt", "r");
 ^~
prog.m:24:1: error: parameter ‘j’ is initialized
 int i, j = 0;
 ^~~
prog.m:26:1: error: expected declaration specifiers before ‘for’
 for(i = 0; i < N; i++) {
 ^~~
prog.m:26:12: error: expected declaration specifiers before ‘i’
 for(i = 0; i < N; i++) {
            ^
prog.m:26:19: error: expected declaration specifiers before ‘i’
 for(i = 0; i < N; i++) {
                   ^
prog.m:42:1: error: expected declaration specifiers before ‘for’
 for(i = N-2; i >= 0; i--) // i = n-2
 ^~~
prog.m:42:14: error: expected declaration specifiers before ‘i’
 for(i = N-2; i >= 0; i--) // i = n-2
              ^
prog.m:42:22: error: expected declaration specifiers before ‘i’
 for(i = N-2; i >= 0; i--) // i = n-2
                      ^
prog.m:43:13: error: expected declaration specifiers before ‘j’
  for(j = 0; j <= i; j++)
             ^
prog.m:43:21: error: expected declaration specifiers before ‘j’
  for(j = 0; j <= i; j++)
                     ^
prog.m:46:3: error: expected declaration specifiers before ‘else’
   else
   ^~~~
prog.m:49:1: error: expected declaration specifiers before ‘printf’
 printf("%d \n",tri[0][0]);
 ^~~~~~
prog.m:61:2: error: expected declaration specifiers before ‘return’
  return 0;
  ^~~~~~
prog.m:62:1: error: expected declaration specifiers before ‘}’ token
 }
 ^
prog.m:63:1: error: expected declaration specifiers before ‘end’
 @end
 ^
prog.m:24:8: error: declaration for parameter ‘j’ but no such parameter
 int i, j = 0;
        ^
prog.m:24:5: error: declaration for parameter ‘i’ but no such parameter
 int i, j = 0;
     ^
prog.m:21:7: error: declaration for parameter ‘fp’ but no such parameter
 FILE *fp;
       ^~
prog.m:12:5: error: declaration for parameter ‘tri’ but no such parameter
 int tri[N][N];
     ^~~
prog.m:11:5: error: declaration for parameter ‘N’ but no such parameter
 int N = 15;
     ^
prog.m: At top level:
prog.m:63:1: warning: ‘@end’ missing in implementation context
 @end
 ^
prog.m: In function ‘main’:
prog.m:63:1: warning: control reaches end of non-void function [-Wreturn-type]
 @end
 ^

Standard output is empty